User manual | Section 1 Twin Cam 1-44 Evolution 46-110

Section 1
Twin Cam 1-44
Evolution 46-110
Cam Cover .................................. 20-21 Andrews ...................................72,87,90
Cams ............................................ 2-13 AV&V Valve Train.....................94-95,100
Colony Hardware ........................... 44-45 Breathers ..................................... 64-65
Connecting Rods.................................17 Cam Covers & Parts ................... 52-57
Cylinder Kits .................................23-26 Cams.............................................70-72
Flywheel ........................................15-16 Crane ............................................71,92
Gaskets .............................................43 Cylinders ......................................78-81
Lifter Block ..................................... 28-29 Engine Case ......................................46
Oil Pump ......................................19-20 Flywheels ................................50,66-67
Pushrods/Covers ........................5,29-30 Flywheel Case Parts ................... 48-49
Pistons ........................................ 23-27 Gaskets Evo .............................104-106
Rocker Arms & Covers .................41-43 Jims ................ 60,64,74-77,88,90,99,101
S&S Motor Cases ..........................14-15 Kibblewhite...............................93,96-97
Tappets .............................................. 22 Lifter .............................................76-77
Valves, Guides, Springs .............. 32-40 Oil Pump ..................................... 58-62
Pistons/ Rings ..............................80-85
Sportster 111-136
Pushrods/ Covers .........................86-89
Bottom End ................................. 112-114 Rocker Arms ....................................101
Cams ................................................111 Rocker Covers ..........102-103, 108-110
Dress Up .................................. 115-116 Rods/Components ......................68-69
Cylinders and Pistons ................. 117-119 S&S .......... 46, 55, 58-59, 64-67, 69-70,
Gaskets ......................................135-136 .....................74-75, 77, 80-82, 86, 88,
90,101
Lifters .............................................. 123
Valves & Guides & Springs ........90-101
Push Rods and Covers ...............120-122
Wiseco .........................................83-85
Rockers .................................... 132-134
Valve Train .................................124-131
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1-1
Twin Cam
1999-2006 Twin Cams Except 2006 Dyna
Andrews gear drive camshafts are available to run with S&S
gear drives. Engines with gear driven cams show a 4 hp
gain over cams with chains. If less power is needed to turn
the camshafts, more power gets to the rear wheel. Also,
gear drive cams do not have chain tensioner shoes to wear
out. When deciding what cams to use in your 88 engine, the
most important consideration is the proper match between
compression ratio and intake cam duration. For best street
performance, the static compression pressure should be
around 175-180 PSI. Drag motors can handle still higher
static pressures. Lower static pressure of 160 PSI are great
for all around riding.
Andrews Touring and Performance Cams
Duration
.053
.020
Valve
Lift
Lift @
TDC
Spring
-02/38
42/-03
216
219
255
259
.473
.474
.072
.110
Stock
Stock cam data listed for carbureted engine. Stock
engine output is approximately 62 HP.
(B)
02/34
42/-03
216
219
255
259
.473
.474
.087
.110
Stock
Stock cam data listed for fuel injected engine. Stock
engine output is approximately 62 HP.
30067
12G
02/34
42/02
216
222
252
259
.489
.489
0.91
0.95
Stock
Similar timing to earlier stock 88 cams but gear drive
cams are used instead of chains. No engine retuning
necessary with this timing.
30072
21G
10/30
40/08
220
228
255
264
.498
.498
.134
.121
Stock
Bolt-in cam. More torque for all around riding with
heavy bikes & stock compression ratios and pistons.
Similar to #23 cam for EV80. 1700-4800 RPM
30073
26G
11/35
41/09
226
230
262
266
.490
.490
.138
.120
Stock
Bolt-in cams: 88-95” and stock compression ratio.
Great for two up touring, this cam will add torque and
HP at lower and middle RPM ranges. 1800-5200 RPM
30068
31G
10/46
52/08
236
240
272
276
.510
.510
.131
.120
Stock
Great cam for motors with 95+” and 10:1 CR. Lower
TDC lift for easy installation. Similar to 37G cam but
with different timing. 2400-5800 RPM
30069
32G
10/46
52/08
236
240
272
276
.570
.570
.131
.120
Hi-Lift
Hi-Lift version of 31G cam. Much more power through
RPM range with 10:1 compression pistons.
2800-5800 RPM
30074
37G
18/38
46/14
236
240
272
276
.510
.510
.174
.148
Stock
Hot street cams for 88” or 95”. 80+ Rear wheel HP
possible with well tuned 88”, more with 95”. Smooth
idle, broad torque (2200-5600 RPM) 9.0 to 9.5 CR.
30082
54G
16/42
43/15
238
238
273
273
.555
.555
.165
.158
Hi-Lift
Specially designed for 96”and 103” motors with CR up
to 10:1. 2200-5600 RPM
30076
50G
20/48
54/18
248
252
283
287
.510
.510
.184
.168
Stock
Designed for easy installation in 95” motors with stock
heads and 9.5 to 9.8 CR. 2400 to 6000 RPM.
30077
55G
22/46
52/20
248
252
283
292
.550
.550
.197
.181
Hi-Lift
Great cam for 95” with 9.8 to 10.2 CR. Max HP torque
at mid and upper RPMs. 2600 to 6200 RPM
30078
60G
24/56
58/22
260
260
296
296
.560
.560
.205
.192
Hi-Lift
For well prepped 95-103”with 10.0 to 10.5 CR, 100+ HP is
within reach. 2700-6500+ RPM
30094
67G
24/48
58/22
252
260
287
297
.570
.570
.209
.187
Hi-Lift
Performance cams for 95-107”+ with 10.0 to 10.8 CR with
high flow head set-up. 2600-6400+ RPM.
30079
59G
29/57
63/27
266
270
303
307
.590
.590
.238
.218
Hi-Lift
Great cam for 95-107+” with 10:2 CR or higher. Max torque
and horsepower. 2700-6500+ RPM
30080
64G
30/62
66/30
272
276
307
312
.640
.640
.262
.232
Hi-Lift
Big cams for modified 95-116+” motors running 10:2 CR or
higher. Heads must be set for .700 lift and modified for maximum air flow. 3000-6500+ RPM
PCP#
Grind
Timing *
Stock 88
Carburetors
(A)
Stock 88
Injectors
Application
(*) Timing and duration listed for .053 cam lift
Note: All Andrews cams for TC88 models require the additional purchase of Andrews sprockets
1-2
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Twin Cam
Andrews Twin Cam 88 Chain Drive Cams for
1999-06 Twin Cams Except 2006 DynaGlide
Want more power from your Twin Cam 88 engine? Andrews
Products has proven cam grinds to get you there. More HP
and torque for stock or modified engines is within easy reach.
All cam grinds listed are designed for use with stock hydraulic
lifters. For any bolt-in cam grind, EZ-install pushrods do not
require removal of gas tanks or rocker boxes for installation.
Andrews Touring and Performance Cams Twin 88 1999-2006 (except 2006 DynaGlides)
Duration
.053
.020
Valve
Lift
Lift @
TDC
Spring
-02/38
42/-03
216
219
255
259
.473
.474
.072
.110
Stock
Carbureted engine. Stock cam data listed for reference.
Stock engine output is approximately 62 HP.
(B)
02/34
42/-03
216
219
255
259
.473
.474
.087
.110
Stock
Fuel injected engine. Stock cam data listed for reference.
Stock engine output is approximately 62 HP.
288121
TW21
10/30
40/08
220
228
255
264
.498
.498
.134
.121
Stock
Bolt-in cam. More torque for all around riding & heavy
bikes and stock compression ratios and pistons. Similar to
#23 cam for EV80. 1700-4800 RPM
288126
TW26a
11/35
41/09
226
230
262
266
.490
.490
.138
.112
Stock
Bolt-in cams: 88-95” and stock compression ratio. Great
for two up touring, this cam will add torque and HP at
lower and middle RPM ranges. 1700-4800 RPM
288131
TW31s
10/46
52/08
236
240
272
276
.510
.510
.131
.120
Stock
Great cam for motors with 95” and 9.8 to 10.2 CR. Lower
TDC lift for easy installation. Similar to TW37 cam with
different timing. 2400-5600 RPM
288137
TW37b
18/38
46/14
236
240
272
276
.510
.510
.174
.148
Stock
Hot street cams for 88” or 95”. 80+ Rear wheel HP possible with well tuned 88”, more with 95”. Smooth idle,
broad torque (2200-5600 RPM) 9.0 to 9.5 CR.
288148
TW48
13/29
43/15
222
238
257
273
.548
.548
.153
.163
Hi-Lift
Broad tip cams for baggers with stock motors. Max torque
at low and mid RPMs.
288154
TW54
16/42
43/15
238
238
273
273
.555
.555
.165
.158
Hi- Lift
Specially designed cam for 95”+ engines with CR up to
10:1. 2200-5600 RPM range
288150
TW50
20/48
54/18
248
252
283
287
.510
.510
.184
.168
Stock
Designed for easy installation in 95” motors with stock
heads and 9.5 to 9.8 CR. 2400 to 6000 RPM.
288155
TW55
22/46
52/20
248
252
283
292
.550
.550
.197
.181
Hi- Lift
Great cams for 95” with 9.8 to 10.2 CR. Max HP and
torque at mid and upper RPMs. 2600-6200 RPM.
288160
TW60a
24/56
58/22
260
260
296
296
.560
.560
.205
.192
Hi- Lift
For well prepped 95-103” with 10.2 to 10.5CR and head
work, 100+ HP is within reach. 2700-6500+
PCP#
Grind
Timing *
Stock 88
Carburetors
(A)
Stock 88
Injectors
Application
(*) Timing and duration listed for .053 cam lift
30600
S&S Stock Spec Gear Drive Cams for 1999-06
BT...All You’re Gaining is Piece of Mind!
Not everybody wants to go faster, but a lot of riders are
concerned about the possibility of the stock cam chain drive
in their 1999-06 Twin Cam 88 engine failing. The solution is to
install a set of gear drive cams that has the same timing and
lift specifications as the stock cam. Stock lift and timing allows
bolt in installation. There is no need for carb jetting or EFI recalibration, and this stock lift cam set will not accelerate valve
train wear like high lift cams do. Fits 1999-06 Harley-Davidson
BT, except 2006 Dyna models.
Stock Spec Gear Drive Cams 1999-06, Except Dyna
30600 475G Cam kit
30601 Cams with inner gears only
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1-3
Twin Cam
Andrews Outer Drive Gear TC Cam Installation
Andrews TC Gear Drive Installation Kit 99-06
The gaskets and bearings shown are necessary to complete
the installation of gear drive camshafts.
288901
288010
This kit includes the crankshaft and cam drive gears for
a gear drive installation. Both bolts for the gears are also
included.1999-06
288903
288015
Andrews Complete Drive Gear Cam Installation
288020
Andrews TC 88 Rear Cam Sprocket Kit 99-06
This kit fits Twin Cams and includes all 4 cam drive gears with
installation bolts. 1999-06
288905 Two inner cam drive gears only
All Andrews Twin 88 cam kits require a heat treated 34T rear
cam drive sprocket that replaces OEM 25563-99. Sprockets
are made from heat treated alloy steel and are longer than
stock providing greater stability. Includes a full length 3/16
drive key and 3 spacer shims that allow the installed length
of new sprocket to be the same as the original stock sprocket
plus spacer.
PCPDescription
288010 Keyed 34T cam sprocket kit
288015 Splined 34T cam sprocket kit
288020 17T Crank sprocket kit
TC Outer Cam Bearings 1999-06
PCPApplication
15746 Outer bearings (8990A) (ea)
15629 Torrington inner bearings (pair)
15630 INA inner bearings (9198) (pair)
Jims Outer Cam Shaft Bearings TC 1999-05
Fits FXD 1999-2005, and FXST, FLST, FLT 1999-2006.
31105
8990A
James Quick Change Cam Kit
79540 25244-99-K
1-4
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Andrews Gear Drive Installation Kit
Inner Cam Drive Gears 2007-13 TC and 2006
Dyna
PCPDescription
216905
2 inner cam drive gears supplied with drive keys
334287
Undersize inner gear
334288
Oversize inner gear
Gear Drive Installation Kit
Gasket and oil port cover plates are necessary to complete
installation of gear drive cams. Camshafts for all 2006 Dynas
and all 2007-on Twin Cam engines use needle bearings on
inner journals, no ball bearings are used. Andrews installation
kit includes 2 replacement bearings.
PCPDescription
216901 Gear drive installation kit
292188
292088
Twin Cam Pushrods 1999-on
Twin cam pushrods are available with EZ-install ends. Made
from anodized aluminum or chrome moly steel. EZ-install
pushrods can be installed without removing gas tanks or
rocker boxes. If you are installing bolt-in cams, this is a big
plus!
PCPDescription
292188 EZ-install aluminum pushrods
292088 EZ-install chrome-moly pushrods
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1-5
Twin Cam
Andrews For All 2007-on Twin Cams and 2006
DynaGlide
216902 Installation kit with gasket & bearings
Camshafts on all 2007-on twin cam engines and ’06 Dynas
use roller chain cam drives. Camshafts made for 1999-06
engines will not fit the 2007-on (or ’06 Dyna engines). Earlier
twin cam engines run older type cam drive chains. Cams
listed below are designed for use with stock H/D hydraulic
lifters.
Crankshaft sprocket: +4 or -4 degree cam timing change for
all 2007-’12 twin engines and 2006 Dynaglides. Install at +4
degrees for more torque or -4 degrees for less compression
pressure.
216323 Crankshaft sprocket (+4 or -4 degree timing change)
Andrews Camshafts for all 2007-on Engines and 2006 Dyna Glides
Duration
.053
.020
Valve
Lift
Lift @
TDC
Spring
103
112.5
216
219
256
259
.473
.474
.087
.110
Stock
Stock ‘06 Dyna cam data listed for reference. All 2006 Dynas
are fuel injection only, no carburetors.
-3.5/40
41/-1.5
107
112.5
216.5
219.5
256
259
.474
.474
.087
.110
Stock
Stock 2007-12 specs listed for reference. Short intake duration is stock on 2007-12 engines.
09H
-02/28
40/-04
105
112
206
216
242
252
.492
.486
.075
.075
Stock
Bolt-in cam for 2007-12 engines. More power through entire
RPM Range. 1000 to 5400RPM!
216321
21H
10/30
40/08
100
106
220
228
255
264
.498
.498
.134
.121
Stock
Bolt-in cams: 2007-12. More torque for all around riding &
heavy bikes. Intended for stock compression ratios and pistons. Similar to #23 cam for EV80. 1700-4800 RPM
216326
26H
11/35
41/09
102
106
226
230
262
266
.490
.490
.138
.120
Stock
Bolt-in cams: 96”-103” and stock compression ratio. Great for
two up touring. This cam will add torque and HP at lower and
middle RPM ranges. 1800-5200 RPM
216331
31H
10/46
52/08
108
112
236
240
272
276
.510
.510
.131
.120
Stock
Great cam for motors with 96” and 9.8 to 10.2 CR. Lower TDC
lift for easy installation. Similar to TW37 cam with timing setup for higher compression. 2400-5600 RPM
216332
32H
10/46
52/08
108
112
236
240
272
276
.570
.570
.131
.120
Hi- Lift
High lift version of 31H. Much more power thru RPM range
with 10:1+ compression pistons. (2800-5600 RPM)
216337
37H
18/38
46/14
100
106
236
240
272
276
.510
.510
.174
.148
Stock
Hot street cams for 96”-103”. 90+ Rear wheel HP possible
with well tuned 96”+. Smooth idle, broad torque (2200-5600
RPM) 9.0 to9.5 CR.
216348
48H
13/29
43/15
98
104
222
238
257
273
.548
.548
.153
.163
Stock
New Design, broad tip cam for baggers with stock motors.
Max torque at low and mid RPMs.
216354
54H
16/42
43/15
103
104
238
238
273
273
.555
.555
.165
.158
Stock
Specially designed for 96-103 engines with compression
ratios to 10:1 (2200-5600 RPM range).
216350
50H
20/48
54/18
104
108
248
252
283
287
.510
.510
.184
.168
Stock
Designed for easy installation in 96-103” motors w/stock
heads and 9.5 to 9.8 CR. 2400-6000 RPM
216355
55H
22/46
52/20
102
106
248
252
283
292
.550
.550
.197
.181
Stock
Great cams for 96-103” engines with 9.8 to 10.2 CR. Max HP
-torque at mid and upper RPMs. 2600-6200 RPM
216357
57H
18/38
46/14
100
106
236
240
270
274
.560
.560
.184
.153
Stock
Bolt-in broad tip cams: 96, 103 Limited and CVO 110 engines.
Max torque: 2200-5600 RPM.
216360
60H
24/56
58/22
106
108
260
260
296
296
.560
.560
.205
.192
Hi-Lift
For well prepped 95-103” with 10.0 to 10.5 CR, 100+ HP is
within reach 2700-6500+ RPM
216367
67H
24/48
58/22
102
108
252
260
287
297
.570
.570
.209
.187
Hi-Lift
Performance cams for 96-110+” with 10.0 to 10.8 CR and
high flow head setup. 2600-6400+ RPM
PCP#
Grind
Timing *
CL**
Stock
2006
Dyna
Intake
Exhaust
02/34
42/-03
Stock
Intake
Exhaust
216309
Application
(*) Timing and duration listed for .053 cam lift
(**) Lobe Centerline angle
1-6
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Twin Cam
Andrews Camshafts For 2007-on Twin Cams and
2006 DynaGlide
Series HG gear drive cams are made for all 2007-on Twin cam
engines and 2006 DynaGlides. The cam lobe designs listed
below are the same as those manufactured for 1999-06 engines.
Gear drives made for 1999-06 engines will not fit 2007-on Twin
cam engines or 2006 Dyna engines. HG cam installation kits include two plates for blocking lubricating oil feed holes which were
intended for stock chain drives, not 2007 style gear drives.
Performance gains with the HG cams listed will be similar to
1999-06 engines running with the same cam grinds.
Designed to run with new 2007 S&S gear drives.
Duration
.053
.020
Valve
Lift
Lift @
TDC
Spring
10/30
40/08
220
228
255
264
.498
.498
.134
.121
Stock
Bolt-in 88-96 cam. More torque for all around riding & heavy bikes.
Intended for stock compression ratios and pistons. Similar to #23 cam
for EV80. 1700-4800 RPM
26HG
11/35
41/09
226
230
262
266
.490
.490
.138
.120
Stock
Bolt-in cam for 96” and stock compression ratio. Great for two up touring. This cam will add torque and HP at lower and middle RPM ranges.
1800-5200 RPM
30182
31HG
10/46
52/08
236
240
272
276
.510
.510
.131
.120
Stock
Great cam for motors with 96+” and 10:1 CR. Lower TDC lift for easy
installation. Similar to 37HG cam with timing set-up. 2400-5800 RPM
30183
32HG
10/46
52/08
236
240
272
276
.570
.570
.131
.120
Hi- Lift
High lift version of 31HG. Much more power through RPM range with
10:1+ CR. 2800-5800 RPM
30184
37HG
18/38
46/14
236
240
272
276
.510
.510
.174
.148
Stock
Hot street cams for 96”-103”. 80+ Rear wheel HP possible with well
tuned 88 motor, more with 95”+. Smooth idle, broad torque. Stock to
9.5 CR. 2200-5600 RPM
30185
54HG
16/42
43/15
238
238
273
273
.555
.555
.165
.158
Stock
Specially designed for 96”-103” engines with CR up to 10:1. 2200-5600
RPM range.
30186
50HG
20/48
54/18
248
252
283
287
.510
.510
.184
.168
Stock
Designed for easy installation in 96”-103” motors with stock heads and
9.5 to 9.8 CR. 2400-6000 RPM
30187
55HG
22/46
52/20
248
252
283
292
.550
.550
.197
.181
Stock
Great cams for 96”-103” engines with 9.8 to 10.2 CR. Max HP -torque
at mid and upper RPMs. 2600-6200 RPM
30188
60HG
24/56
58/22
260
260
296
296
.560
.560
.205
.192
Hi-Lift
For well prepped 96”-103” with 10.0 to 10.5 CR, 100+HP is within
reach. 2700-6500+ RPM
30189
67HG
24/48
58/22
252
260
287
297
.570
.570
.209
.187
Hi-Lift
Performance cams for 96”-120+”, 10.0 to 10.8 CR with high flow head
set-up. 2600-6400 RPM.
PCP#
Grind
Timing *
30180
21HG
30181
Application
(*) Timing and duration listed for .053 cam lift
Matching EZ-install pushrods kits are also available from Andrews Products. EZ-install pushrods do not require removal of gas
tanks or rocker boxes when installing bolt-in camshafts.
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1-7
Twin Cam
Crane Twin Cam 88 Cams 1999-06 (except Dyna 2006)
PCP
Application
34589
Hot Street Performance ModifiedOK w/stock cu. inch or
big bore kits (95”) Best power w/increased comp ratio
9.5:1 and up, head modifications. Must use Crane V/
springs, clearanced for .570” lift. Great low end and
mid range torque w/added upper RPM power. Must use
performance air cleaner, free-flow exhaust.
Range: 1800 to 5800RPM
34590
Max Hot Street, Modified. For modified engines. Higher
comp 10.5:1-up, big bore kits, head mods., etc. Must
use Crane V/springs, clearanced for .600” lift. Strong
mid range torque w/upper RPM power. Must use
perform. air filter and free-flow exhaust.
Range: 2000 to 6200 RPM
Grind
Valve Lift
Int./Exh.
HTC-290-2
(1-3003)
HTC-304-2
(1-3004)
Dur. @ .053” Adv. Dur.
Intake
Exhaust
.570”/.570”
240
18/42
248
46/22
.600”/.600”
254
25/49
260
56/24
Note: All cams are for 1999-06 Twin Cam 88 engines. All cams are made for splined cam sprocket. Twin Cam 88 drive
sprocket required for 1999 models, use Screaming Eagle No. 25446-99. Stock 2000-on models use stock cam gear. Also
cam drive sprocket bolt No. 996 and washer No. 6294.
Twin Cam Bearings 2000-06
PCPApplication
15757 R/cam with inner race (8983)
15758 R/S balance shaft
1-8
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Twin Cam
Cam Kits for 2007-on Twin Cam and 2006 Dyna
Get Crane’s explosive dyno proven HP, torque RPM and reliability in five computer designed hydraulic cams. Available for
mild street/cruising to race engine build-ups. Features lobeto-lobe cam profile accuracy for off-idle torque to high RPM
horsepower.
Crane Camshafts for Twin Cam 2007-on and 2006 Dyna
Grind
34630
1-6000
HTC-300-2
34631
1-6001
HTC-310-2
34632
1-6002
HTC-316-2
34633
1-6003
HTC-290-2
34635
1-6005
HTC-296-2
Valve Lift
Int./Exh.
Application
Dur. @ .053” Adv. Dur.
Intake
Exhaust
.505”/.505”
(.147”/.152”)
226
13/33
236
42/14
Moderate Street, Cruising
Bolt-in cam, Mild performance for Dynas, Softails or single riders. Stock
compression ratio or up to 9.5:1. Best power with performance air
cleaner and free flow exhaust. Uses stock valve springs.
Range: 1500 to 5000 RPM.
.505”/.505”
(.185”/.157”)
236
20/36
242
47/15
Street Performance, Some Engine Modifications
Bolt-in cam, OK with stock compression ratio but works best with up to
10.1:1. Best power with performance air cleaner and free flow exhaust.
Uses stock valve springs.
Range: 1800 to 5800 RPM.
.505”/.505”
(.178”/.205”)
242
19/43
252
48/24
Hot Street Performance, Modified
OK with Stock cubic inch or big bore kits (95 c.i.). Best power with
increasing compression ratio of 9.5:1-up, head modifications. Must use
Crane valve springs, clearanced for .570” lift. Great low-end and midrange torque with added upper RPM power. Must use performance air
cleaner and free flow exhaust.
Range: 1800 to 5800 RPM.
.570”/.570”
(.173”/.198”)
240
18/42
248
46/22
Hot Street Performance, Modified
For modified engines with 10.25:1-up compression, big bore kits, head
mods, etc. Must use Crane valve springs, clearanced for .620” lift. Must
use performance air cleaner and exhaust. Designed for use with Edelbrock Performer RPM Twin Cam cylinder heads.
Range: 2000 to 6200 RPM.
.619”/.619”
(.188”/.193”)
246
20/46
254
52/22
Mild-Street, Cruising, Touring
Bolt-in cam, low-end torque and mid-range HP. Good for heavy bikes.
Stock compression ratio. Best power with performance air cleaner, free
flow exhaust. Uses stock valve springs.
Range: Idle to 5000 RPM.
www.prestoncycle.com
1-9
Twin Cam
S&S Easy Start Cams
Start any Twin Cam engine regardless of displacement or
compression, even those with a stock starter, without running
down the battery. Available in chain or gear drive versions.
Kits include cams, cam installation kit and gear drive kit, when
required. Fully automatic, no buttons to push!
Twin Cam Easy Start Cams
Years
2007-on
2007-on
1999-06
Drive
Chain
Gear
Gear
551
30620
30635
30605
570
30621
30636
30606
583
30622
30637
30607
585
30623
30638
30608
625
30624
30639
30609
How It Works
1
Each of the two exhaust cam lobes are equipped with a spring loaded
compression release lobe on the “heel” of the cam at the point where
the valve would normally be fully closed
2
The lobe holds the exhaust valve open slightly at cranking speed. This
releases some of the compression, making the engine much easier to
crank.
3
Once the engine starts, and RPM increases, the compression release
lobe is centifugally retracted and the engine runs normally, with full
compression, and without any loss in performance. This allows a stock
starter and battery to start nearly any engine
Series
Note: 2006 Dyna uses 2007-on style cams
335175
Three Most Popular Grinds
Bolt-in cams were designed with a grind to provide low end torque for
touring, a grind for maximum power and another for the best combination of torque and horsepower. Note: These cams were optimized
for use with stock headpipes and performance slip-on mufflers.
551 Torque Cam
Optimized for a 2007-on 96 to 106 CID touring bike with slip-on
mufflers and a 9.0 to 10.0:1 compression. Not recommended for over
10:1 CR.
·Best bolt-in cam for Dressers
·Pulls hard from idle to 4000 RPM
583 Midrange Cam
Optimized for use as a great overall cam in the Softail, Dyna lines,
but can be used in any 2007-on BT model.
·Strong low end torque and horsepower you can feel
·Strongest from 1500-5000 in a Softail/Dyna application
585 Horsepower Cam
335182
Optimized for a 2007-on Softail or a 2006-on Dyna 96 to 106 CID with
slip-on mufflers, high flow air filter and 9.0 to 10.5:1 compression
·Great results from 3000-6000 RPM
S&S 510 Chain Drive Camshaft Set for TC 88
Carb Models Only 1999-06 (except 2006 Dyna)
Specifications:
Lift
Duration Open/Close Centreline TDC Lift
Int. .510”238 20/38
99
.187”
Exh..510”252 52/20
106 .178”
Camshafts are intended for “hot street” applications-lighter
motorcycles that can utilize significant power increases at
3000 RPM and above.
Recommend use of cam sprocket #288010.
335182 Cam set only
335175 Camshaft installation kit
1-10
S&S Chain and Gear Drive Specifications for 1999-on Big Twins
Cam
551
Valve Timing
Open/Close
Valve Duration
Int.
Exh.
Int.
Exh.
15º/20º
39º/18º
215º
237º
Valve
Lift
.550”
Centreline
Lift @ TDC
Int.
Exh.
Int.
Exh.
92.5º
100.5º
.163”
.179”
583
8º/5º
60º/22º
204º
262º
.583”
92.5º
109º
.131”
.199”
585
20º/5º
60º/20º
245º
260º
.585”
102.5º
102.5º
.186”
.179”
Note: These specifications apply to all S&S chain and gear driven cams.
Note: Stock valve springs in 1999-04 Big Twin models can
handle cams with valve lifts as high as .515”. Stock valve
springs in 2005-on engines can accomodate valve lifts up to
.590”.
www.prestoncycle.com
Twin Cam
S&S Gear Drive Cams for 1999-on BT Engines with Stock Oil Pumps
Recommended Application for S&S Cams
Application Information for S&S BT Camshafts
S&S offers a variety of cam grinds for 1999-on BT engines
in chain drive and gear drive versions. Cams that exceed the
limits of the stock valve springs require the use of special high
lift springs. Most S&S cams have higher lift than stock and are
designed to take advantage of the extra flow of ported stock
heads or S&S Super Stock heads. Due to the high lift of these
cams, S&S adjustable pushrods are recommended. Not all
grinds are available in the chain drive version. To get the best
performance from a performance cam installation, a high flow
intake and exhaust system is also recommended.
Easy Start Cams
These cams revolutionize the starting of late model Big Twins.
Regardless of displacement or compression ratio, a stock
starter and battery will now easily turn over any engine. These
cams also install just as easily as non compression release
versions and requireno extra parts or machining. Avalable in
cam and gear drive versions.
How Easy Start Cams Work
At the heart of the Easy Start cam is a centrifugally retracted,
spring loaded, compression lobe milled into the heel of
each exhaust lobe. At cranking speeds, the lobe bumps the
exhaust valve open slightly during the compression stroke,
making the engine much easier to turn over. Once the engine
fires and reaches 800 RPM, the lobe swings out of the tappet
roller path, allowing the engine to run normally and with full
compression.
◙ 475: Bolt-in replacement cam with stock cam timing. Use to
eliminate the factory chain drive system, but are not necessarily looking for more power Does not require tuning.
◙ 509: Bolt-in high torque cam for 1999-06. 180 psi cranking compression, no need for compression releases. For 88” engines with stock CR. Idle-4500 RPM.
◙ 510: bolt-in cam for 88”, 95”, 96” engines with CR below 9.7:1. For stock heads that have not been ported. 3000-5500 RPM.
◙
546: Short duration emissions cam with very little overlap to reduce emissions. It is intended as a replacement for S&S emissions certified engines. Requires high lift springs and normal clearance checks. 1000-4000 RPM.
◙
551: For 96” to 106” engines with CR of 9:1 and 9:9. Bolt-in cam set for stock or mildly modified touring bikes. Not recommended
for CR of 10:1 or greater. Greatly improves low-end to midrange torque, strongest from idle-4000 RPM
◙ 570: Designed for 88” to 103” engines with CR between 9:1 and 10:1. Provides nice power increase across the entire power band. 3200-5700 RPM. Excellent bolt-in for overall power on a 103”.
◙ 583: Optimal for use in the Softail/Dyna model lines. Provides horsepower and torque all through the RPM range, making the most power where you need it: 1500-5000 RPM.
◙
585: Designed for 88” to 95” engines with CR from 9.7:1 to 10.5:1 and 100” to 124” engines from 9:1 to 10:1 CR. Provides massive horsepower and torque increases starting at 3000 RPM and holds steady all the way to redline. 3500-6000 RPM for
88”-103” engines and 2500-5500 RPM for larger engines.
◙ 625: Cam set designed for 95” or larger engine with CR between 10.0 and 10.75:1. 3000-6000 RPM.
Note:
Stock valve springs in 1999-04 BT models can handle cams
with valve lifts as high as .515”. Stock valve springs in 2005on engines can accomodate valve lifts up to .590”.
◙ 640: Used in S&S T124 engines, this cam makes horsepower!
For 95” engines or more with CR between 10.5:1 and 11.5:1. 3000-6000 RPM.
◙ 675: A high lift monster, this cam is designed for 120” or larger engines with at least 11:1 CR. 4500-6500 RPM
S&S Gear Drive Cam Specifications For Big Twin 1999-on
Series
Valve Timing
Open/Close
Valve Duration
Open/Close
Valve Lift
Centreline
Lift @ TDC
Intake
Exh.
Intake
Exh.
Intake
Exh.
Intake
Exh.
475G (stock)
2/34
36/4
216
220
.475”
106
106
.060”
.060”
509
18/18
46/11
216
237
.509”
90
107.5
.174”
.140”
510
20/38
52/20
238
252
.510”
99
106
.187”
.178”
546
5/55
52/5
240
237
.546”
115
113.5
.126”
.106”
551**
17/19
41/17
216
238
.550”
91
102
.178”
.170”
570
20/40
55/20
240
255
.570”
100
107.5
.187”
.179”
583
5/18
58/24
203
262
.583”
96.5
107
.113”
.206”
585
20/45
60/20
245
260
.585”
102.5
110
.186”
.179”
625
20/55
60/20
255
260
.625”
107.5
110
.189”
.184”
640
25/60
65/25
265
270
.640”
107.5
110
.228”
.214”
675
25/64
70/25
269
275
.675”
109.5
112.5
.235”
.205”
Note:
* Although several cam grinds were used in stock engines from 1999-06, the timing specs of the 475G cam is most similar to
cams used in 1999-03 EFI engines.
**551 Cams are not recommended with compression ratio of 10:1 or higher
www.prestoncycle.com
1-11
Twin Cam
S&S TC Camshaft Installation Support Kit
Kit includes replacement gear cover gasket, inner and outer
cam bearings and retainer ring for gear drive cams.
335163 1999-06 (except 2006 Dyna)
S&S Twin Cam 88 Gear Drive Camshafts 1999-06 (except 2006 Dyna)
These cams increase valve timing accuracy in 1999-06 Twin Cam engines by eliminating timing chain lash and the loosely fit
stock cam gears. The chain, chain guides and tensioner are eliminated which negates the possibility of these parts failing and
damaging other parts. The kit also reverses the rear cam’s direction of rotation, providing additional operating clearance between cam lobes. Cam kit includes inner gears only. Outer cam drive gear kit must be ordered separately. Some modifications
are required to the stock gear cover and crank case on .625” and .640” lift cams.
PCP
S&S Gear Drive Cam Specifications
Valve Timing
Valve Duration
Centreline
Va l v e
Open/Close
Open/Close
Series
Lift
Intake
Exh.
Intake
Exh.
Intake
Exh.
570G
20/40
55/20
240
250
.570”
100.0
107.5
585G
20/40
60/20
245
260
.585”
102.5
110.0
625G
20/55
60/20
255
260
.625”
107.5
110.0
640G
20/60
60/25
265
265
.640”
107.5
107.5
Outer cam drive gear kit
Adjustable pushrod set
Quickee pushrod set
Lift @ TDC
Intake
.187”
.186”
.189”
.228”
Exh.
.179”
.176”
.184”
.221”
335166
335168
335170
335172
334276
935095
935122
Note:
335166 is designed for 88-103 cubic inch engines with a compression ratio between 9:1 and 10:1
335168 is designed for 88-95 cubic inch engines with compression ratios from 9.7:1 to 10.5:1
335170 is designed for engines of 95 cubic inches or more with compression from 10:0 to 10.75:1
335172 is designed for engines of 124 cubic inches with compression from 10.5:1 to 11.5:1
S&S TC Cam Gear Drive Kit
S&S Outer Cam Drive Gear Kit 1999-06
334276
1-12
Not for 2006 Dyna
Includes front and rear inner cam gears, pinion gear and
outercam gear. Fits BT 1999-06 (not 2006-* Dyna).
334275
www.prestoncycle.com
Twin Cam
335181
S&S Gear Drive Cams for 1999-on BT
Engines with Stock Oil Pumps
Notes:
◙ Pinion shaft runout must be checked before installing S&S geardrive cams
◙ A hydraulic press and other professional tools are required to install S&S gear drive cams. Additionally, material must be removed from the inner surface of the stock gear cover. The stock crankcase will require clearancing for S&S .625”, .640” and .675” lift cams. S&S recommends that gear drive cams be installed by a professional mechanic.
◙ New cam bearings and a new gear cover gasket are required to complete installation. Gear drive cams for 1999-06 models require the use of ball bearing style
cam bearing, not stock roller bearing as they have more internal clearance which can cause excessive gear lash and increased noise. The correct parts are provided in S&S cam installation kit #335163.
◙ Due to the inherent characteristics of gear drives, you
may experience more valve train noise with gear driven cams. Oversized and undersized gears are available to help achieve correct gear lash. With 160 lb of valve seat force, the S&S gear drive cams will perform well up to 6200 rpm. If higher rpm is anticipated, valve springs that provide higher seat force should be used.
Which S&S Gear Drive Cam Kit to Order?
◙ If updating from the stock chain drive
system, it is easiest to order a complete kit, which includes camshafts with inner gears, an outer cam drive gear kit and a camshaft installation kit whihc includes the S&S cam bearing retainer plate.
◙ If replacing cams in an engine already equipped with S&S gear drive cams, order a cam with inner gears and reuse the
existing outer gears. Separate purchase of a camshaft installation kit for appropriate model year is recommended.
◙ If installing a gear drive cam set without inner gears from another cam manufacturer, cam drive gear kit for appropriate model
year provides the inner cam gears as well as an outer cam drive gear kit. Separate purchase of a camshaft installation kit for appropriate model year is recommended.
S&S Gear Drive Camshaft Kits for 1999-on BT
Engines Meeting the Needs of High Performance Engines
The patented S&S gear drive cams are a must in order to
achieve the full potential from high performance Harley-Davidson Twin Cam 88 engines. Since the chain drive system used
in stock Twin Cam 88 engines is not adequate to accurately
control valve action at hih rpm when using high lift cams
and high performance valve springs, a different system was
needed. The S&S gear drive system was developed to improve performance and to eliminate potential engine damage
caused by failure of the chain and tensioner system.
Improved Timing, Accuracy and Less Drag
S&S gear drive camshaft kits improve valve timing accuracy
by eliminating the timing chain lash as well as variations
caused by the loose fitting stock cam drive sprockets. All
stock chain drive components are replaced with S&S gear
drive cams and outer drive gears. This simple, effective solution reduces power loss by eliminating chain drag, and allows
more agressive cam profiles and increased valve spring force
to be used.
S&S Gear Drive Cams for 1999-on BT Engines with Stock Oil Pumps
Complete Kits
Cam
Cams with Inner Gears
1999-06*
2006 Dyna
2007-on All
1999-06*
2006 Dyna
2007-on All
475G (stock)
30600
N/A
30601
N/A
510C/510G
335177
335266
335174
335246
546G
335230
N/A
335236
N/A
570C/570G
335178
335267
335166
335247
585C/585G
335179
335268
335168
335248
625C/625G
335180
335269
335170
335249
640C/640G
335181
335270
335172
Note: Complete kits include all parts needed for installation.
*except 2006 Harley-Davidson Dyna Models
Although several cam grinds were used in stock engines from 1999-06, the timing
specs for 475G cam is most similar to cams used in 1999-03 EFI engines.
S&S Oversize and Undersize Replacement Gears
Due to machining variations in the stock complete, oversized or undersized gears may be needed to acheive correct gear lash.
S&S Pinion Gears
S&S Inner Cam Gears (Rear)
Oversize
These gears may halp eliminate gear noise.
Undersize Fitment
73744*
73746**
73745
73747
1999-06 BT models except 2006
Dyna
2006 Dyna and 2007 BT
*2.2461/2.2471 Over pin measurement using .125” pins
** 2.2441/2.2451 Over pin measurement using .125” pins
PCP
Description
Over Pin
73742
Pinion gear, oversize
2.1360 / 2.1369
73743
Pinion gear, undersize
2.1342 / 2.1351
www.prestoncycle.com
(using .125” pin)
1-13
S&S TC “A” Style Crankcases
Not Available for Twin Cam 88B or 2007-on TC
96 or TC-96B engines
Features:
•Greater overall strength than stock crankcases, especially in the front motor mount, important for high performance
applications.
•Compatible with most stock components.
•Clearance for up to .675” lift cams & 5” strokes
•Includes pinion and Timken sprocket shaft bearing
•Crankcase breather reed valve eliminates oil carry-over and oil scavenging problems
S&S Twin Cam Style Stock Replacement Crankcases
Fits 1999-06 Models except 2006 Dyna. Kits include crankcase, breather reed valve, bearings and hardware.
Bore
Natural
Black
Stud Pattern
Stock
1064039
310172
Stock
4”
1064041
310175
Stock
4-1/8”
1064057
310181
Stock
310178
S&S
4-1/8”
312071
S&S Crankcase Breather Valve for Twin Cam
This valve helps to reduce crankcase pressure by reducing oil carry over problems. The use of this valve also can
provide a slight increase in torque and horsepower through
the midrange. Not available for Twin Cam 88B or Twin Cam
96B engines.
For Engines with Stock Oil Pump
312070 1999-02
312071 2003-10
Engines with S&S Oil Pump
312093 1999-02 stock crankcases
312094 2003-10 Stock and all S&S crankcases
Timken Bearing Sleeve
Will convert 2003 and later TC-88 models from a roller bearing to a Timken tappered bearing. Bearing sold separately.
73753
Sprocket Shaft Spacers
For BT models 1998-02
PCPYears
11828 1998-99 BT
11829 1999-02 BT
Crankshaft Bushing Twin
Cam 1999-on
18613 25344-99 (each)
1-14
Chrome Crank Sensor Cover
Includes mount screw.
44070 1999-on FXD-FLT
www.prestoncycle.com
Twin Cam
S&S Super Stock T2 Crankcase
Fits 2007-15 Touring models. Requires simple transmission
case modifications. Looks like stock but is stronger due to
thicker wall sections and aircraft grade aluminum construction. Features durable powder coat finish, reinforced front motor mount, Timken sprocket shaft bearing, pinion and Timken
bearing and installed studs and cam bearing. Clearanced
for strokes up to 4-13/16” and cams up to .720” lift. Installation requires additional purchase of S&S oil line kit. For easy
installation S&S recommends the purchase of a transmission
drilling fixture kit.
Wrinkled
Black
Silver
Bore
Bolt Pattern
31003673100366 StockStock
31003693100368 4-1/8”Stock
5300006
Installation Kits
3100435 Oil line kit
5300006 Trans drilling fixture kit
S&S 3 Piece Flywheel Assemblies 2007-15
S&S 3 Piece Flywheel Assemblies 1999-06
Fits 1999-06 BT except 2006 Dyna models-balanced or
unbalanced. Hard, heat-treated material does not require
thrustwashers. Larger 1.671” diameter crankpin for increased
contact area and tighter press fit for a stronger joint. No
welding required. Integral mainshafts, consistant balance and
precision machining as well as reduced mainshaft deflection
at high RPM result in less vibration, truer flywheels and higher
possible RPMs. Compatible with gear drive cams.
Displacement
Stroke
Sprocket Bearing
Race
Total Piston
Weight
Pistons
88”, 95”, 97”, 100”
4”
No
1230
Stock or S&S
PCP
1999-06 BT except 2006 Dyna models
3200403 TC 88
3200397 TC 88B
Notes:
• Most S&S flywheel assemblies for 1999-15 BT engines are designed for use
with Timken sprocket shaft bearings. They will fit directly in stock 1999-02 H-D
crankcases and all S&S crankcases for 1999-15 BT engines with no modifications. However, stock 2003-later engines use a roller type bearing for the
sprocket shaft. S&S does offer flywheel assemblies that are compatible with
late roller style stock sprocket shaft bearings, but they are not recommended
for very large, high performance engines.
• S&S Strongly recommends retrofitting 2003-15 model crankcases to accept
a Timken sprocket shaft bearing. A Timken conversion sleeve, such as, OEM#
34822-08 or Jims # 956 may be used. A charging system spacer for 1999-02
model year is also required.
Fits 2007-15 BT models-balanced or unbalanced. Features
hard, heat-treated material is stronger than stock and light
eight connecting rod forgings. Available with full width wristpin
connecting rods, integral mainshafts and a larger 1.671” diameter crankpin for increased contact area and tighter press
fit for a stronger joint. No welding required. Consistant balance and precision machining as well as reduced mainshaft
deflection at high RPM result in less vibration, truer flywheels
and higher possible RPMs. Stock pistons in 2007-on engines
require rods with tapered wrist pin ends.
Displacement
Stroke
Sprocket Bearing
Race
Balanced to
Total Piston
Weight
Pistons
96”, 103”, 110”
4-3/8”
No
1035
Stock
PCP
2007-15 BT
3200403 TC 96, TC 103
3200397 TC 96B, TC103B
Notes:
• All S&S flywheels for 2007-on engines have stock 7.659” length connecting
rods
• Assemblies with no race require a Timken sprocket shaft bearing
• Most S&S flywheel assemblies for 1999-15 BT engines are designed for use
with Timken sprocket shaft bearings. They will fit directly in stock 1999-02 H-D
crankcases and all S&S crankcases for 1999-15 BT engines with no modifications. However, stock 2003-later engines use a roller type bearing for the
sprocket shaft. S&S does offer flywheel assemblies that are compatible with
late roller style stock sprocket shaft bearings, but they are not recommended for
very large, high performance engines.
• S&S Strongly recommends retrofitting 2003-15 model crankcases to accept
a Timken sprocket shaft bearing. A Timken conversion sleeve, such as, OEM#
34822-08 or Jims # 956 may be used. A charging system spacer for 1999-02
model year is also required.
www.prestoncycle.com
1-15
Twin Cam
Complete 88” Flywheel Assembly-(USA Made)
S&S 106” Stock Bore Stroker for Twin Cam “A”
This S&S 4-1/2” stroke flywheel assembly with S&S 3-7/8”
bore pistons for a displacement of 106 cubic inches. This is a
perfect upgrade for standard Twin Cam 88 and 88B engines
with internal balancers. Installation of the kit does not require
any special machining, other than fitting the pistons. This kit
requires special 92-1210 forged S&S stroker pistons that
must be purchased separately. Stock 88” cylinders can be
bored from 3-3/4” to 3-7/8” to accomodate the S&S pistons
or prefit S&S cylinder and piston kits are available. Engines
with factory 95” kits require piston fitting only. Stock or S&S
cylinder heads can be used. Fuel injected engines will require
remapping of the fuel injection systems. With stock H-D
heads the compression ratio is 10.1:1, with S&S 89cc heads
the compression ratio is 9.8:1. This kit includes assembled
flywheels and piston oilers only. Engines with strokes over 4”
may require S&S piston oiling jets and piston to jet clearance
notches in the piston skirt to avoid contact. Maintains stock
engine height.
Engine Stroke Bore Cyl. Length Application
106” 4-1/2”3-7/8” Stock
Trips
(4.937”)
PCP
Model (forstock bearing race)
3200459 TC 88A 1999-06, except 2006 Dyna (3-pc design)
322490 TC88A 1999-02 (5-pc design)
3200453 TC 88B 2000-06
Shipped complete and assembled as pictured but trueness
must be checked before assembly of motor.
58051 2002-06 Touring with thrust washer & inner race (23904-03)
58050 2005-06 Softail Twin Cam B (23971-03B)
58053 2007-on 96” Softail Twin Cam B (23912-07)
Left Bearing Kit
Fits 2003-on TC-88 left side
crank shaft.
15761 (24004-03A)
S&S TC Pinion Bearing
Fits 2001-02 Softails, 2001-on
balanced stock Twin Cam 88B engines, all 2003-on stock engines
and all Twin Cam style engines
built with S&S crankcases. S&S
does not recommend using this
bearing in sprocket shaft applications in 2003-on engines.
314085
Piston Sets (3-7/8”Forged with Rings)
921210 STD
921214 .005
921211 .010
921212 .020
Important Note:
S&S does not produce a set of flywheels that is a direct
replacement for the 2003 and later Big Twin engines. Stock
2003-on engines use the same roller type bearing for the
sprocket shaft that is used on the pinion shaft. However, S&S
flywheels may be used in 2003-on engines with the installation of H-D bearing kit #24004-03A. These crankcases use a
roller type bearing for the sprocket shaft. Verify that the bearing kit contains the 24604-00D or 24607-07 sprocket shaft
bearing. Do not use #24604-00, 24604-00A, 24604-00B or
24604-00C bearing.
1-16
Twin Cam Cylinder Studs 1999-on
312340 S&S (8 pk)
72083 Colony (16834-99) (8 pk)
32346 Kibblewhite (8 pk)
www.prestoncycle.com
Twin Cam
Twin Cam Rod Roller
Kit
15801
Sonnax
3400072 S&S
S&S Twin Cam Connecting Rods 1999-on
Designed for use with S&S Twin Cam and Super Sidewinder
Plus style flywheel assemblies. The set includes 1.500” diameter pressed in style crankpin, rod bearing assembly and front
and rear connecting rods. .927 wrist pin, 7.668 long.
347405
Oil Seal Sprocket Shaft
14078 1999-on (12068)
Twin Cam Piston Pin Bushing
Motor Sprocket Shaft Seal Spacer
Sold each.
PCP
Fitment
Size
OEM
With Timken bearing sleeve conversion
2008-14 FLHT, FLHX, FLHR, FLTR
2007-15 Softail
2006-15 Dyna
18021
Twin Cam bushings are sold in pairs and have an O.D. of
1.020”. Replaces 24316-99 on all Twin Cam models. Pair.
18644 Preston
31356 Jims
32114 Kibblewhite piston pin bushings
1.0190” o.d. Bushing does not include oil holes,
Must be drilled after installation
11887
18015
1.565”
2008-15 FLHT, FLHX, FLHR, FLTR
2007-15 Softail
2006-15 Dyna
24009-06
18014
1.537”
2003-07 FLT, FLHT, FLHX, FLHR, FLTR
24008-03
18022
1.096”
1999-02 FLT
24008-99
18020
1.330”
2003-05 Dyna
24038-03
18018
1.431”
2003-06 Softail
24039-03
18017
0.983”
2001-02 Softail
24039-01A
18019
0.890”
1999-00 Softail, 1999-02 Dyna
9955
24038-99
9956
Complete Colony Motor Case Kits
Kits contain all the necessary hardware to bolt together the
Harley motor cases. Each kit is packaged for the specific application. Twin Cam Big Twin 1999-on
9956 Polished allen
9955 Polished acorn
Twin Cam B Tensioner Guards
For Twin Cam B motors 2000-on. Replaces 14761-00.
71008 3 Piece set
www.prestoncycle.com
1-17
Twin Cam
PCP OEM Description
1 10103 601
Roll pin 2 9946 4740A
Chr/allen screws
3 15757 8983
Outer cam bearing
4 15746 8990A
Outer cam bearing
5 15629 9198
Inner cam bearing
15634 9215
Inner cam bearing
6 11016 11031
Retaining ring,
7 14587 11286
O-ring, oil pump
8 1459111293
O-ring
9 14593 11298
O-ring, viton, plug
10 1459411301
O-ring
11 11021 11494
Retaining ring
12 15747 24623-99C R/S main bearing
15520 24604-00C R/S main bearing
15522 24605-07 R/S main bearing
13 79539 25244-99 Gasket, cam cover
79540 25244-99 Quick change kit
14 45336 25247-99 Chrome cam cover
45475 25369-01A Chrome cam cover
15 N/A 25267-99B Cam support plate
16 18613 25344-99 Bushing, crankshaft
17 24101 25533-99A Sprocket retension
24103 25566-06 Sprocket retension 18 29037 25607-99 Chain, secondary
19 29154 25609-99 Sprocket, 17T
Year
99-05
99-*
99-05
99-05
99-05
06-on
99-on
99-*
99-*
99-*
99-*
99-*
1999
00-06
00-on
99-*
99-*
99-00
01-14
99-05
99-*
99-05
06-*
99-05
99-05
U/M
10
kit
ea
ea
pair
ea
10
10
10
10
10
10
ea
ea
ea
5 pk
kit
ea
ea
ea
ea
kit
kit
ea
ea
PCP
20 29038
21 11899
11900
11901
11902
11903
11904
22 29069
30039
23 13010
24 30113
25 29155
26 45307
27 11111
11112
28 30035
30036
29 30037
30038
30 30175
31 9954
OEM Description
Year
25610-99 Chain, primary drive 99-05
25729-06 Cam drive spacer .10006-*
25731-06 As above .110
06-*
25734-06 As above .120
06-*
25736-06 As above .130
06-*
25737-06 As above .140
06-*
25738-06 As above .150
06-*
26035-99 Oil pump assembly
99-05
26037-06 As above
06-*
26210-99 Relief valve spring
99-*
26400-82B Oil pump relief valve 99-*
26464-99 Pressure, geo-rotor 99-05
32679-99 Chrome sensor cover 99-*
35115-99 Retain/ring m/bearing 99-01
35114-02 As above
02-*
39954-99 Prim/chain tensioner 99-05
39968-06 Prim/chain tensioner 06-*
39964-99 Sec/chain tensioner 99-05
39969-06 Sec/chain tensioner 06-*
39965-99 Chain guide
99-05
68042-99 Point cover screws
99-*
Tappet Oil Screen
Includes 24983-00 screen and 11301
o-ring for 2000-on Softail.
72284
30035
30037
Twin Cam Drive Components
PCPApplication
30035 Primary cam chain tensioner 1999-05 (39954-99)
30037 Secondary cam chain tensioner 1999-05 (39964-99)
1-18
U/M
ea
ea
ea
ea
ea
ea
ea
ea
ea
10
ea
ea
ea
10
10
ea
ea
ea
ea
ea
5
Cam Drive Components 2006-on
PCPApplication
30038
Secondary drive chain tensioner (39969-06)
www.prestoncycle.com
Twin Cam
21855
BT Outer Cam Support Plate
Twin Cam heavy-duty billet cam plate features enlarged oil
passages for improved oil flow. Hard anodized billet aluminum
finish offers strength and stability under high temperatures.
PCPApplication
30178 1999-06 FLT, FLST, FXST and 1999-05 FXD
30179 2007-on FLT, FLST, FXST and 2006-on FXD
Tensioner Pin Kit
Converts gear drive cam plate
to be used with chain drive
gear. Includes tensioner pins,
chain towerand hardware. Fits
1999-06 FLT, FLST, FXST.
17327
Twin Cam Super Pump
Utilizes an oversized highly efficient geo rotor design. Provides an increase in pump volume and more scavenging
volume. This high volume pump bolts into the stock location
and includes o-rings and mounting hardware.
PCPApplication
21855 Hi Flow (+) 1999-06 FLT, FLST, FXST; 1999-05 FXD
30039 2007-on FLT, FLST, FXST and 2006-on FXD
Daytona High Performance Oil Pumps
T/L TC Oil Pump Assembly 1999-05
PCPYears
29069 1999-05 (26035-99B)
High volume, high pressure pumps feature a 53mm trochoid
rotor to offer tremendous scavenge volume and pressure,
even at low RPMs. Includes a cam support adaptor to use
with stock cam plate.
PCPApplication
71023TC88
71024 TC96
TC-88 Oil Bypass Shim
Machined shim assures proper spring
pre load improving oil pressure and
volume.
73606
TC-88 Oil Pump
Alignment Tool
Tapered tool threads into the oil pump
and perfectly aligns the pump to the
cam plate. Use on all TC and Evo
engines.
5894
www.prestoncycle.com
1-19
Twin Cam
45336
S&S TC3 Cam Plate
CNC machined, forged aluminum plate with adjustable oil
pressure regulator, removable passage plugs and bronze
bushings. Unless running gear drive cams, hydraulic tensioners and 2007-on style oil pump is required. Not compatible
with stock spring-loaded tensioners or stock 1999-06 oil
pumps.
PCPApplication
3100623 1999-06 BT with gear drive cams, except 2006 Dyna
3100625 2006 Dyna and 2007-15 BT
Twin Cam Chrome Cam Cover
S&S TC3 Oil Pump
Chrome Cam Covers
Three stages for consistant pressure and scavenging. Separate scavenge sections for flywheel and cam chest. Screens
and traps help protect scavenge rotors from debris. S&S
1999-06 oil pumps are not compatible with S&S 1999-06 cam
support plates. All S&S TC3 cam support plates are machined
for S&S 2007-on style oil pumps.
PCPApplication
3100640 1999-06 BT with gear drive cams, except 2006 Dyna
3100641 2006 Dyna and 2007-15 BT
PCPApplication
45336 1999-00 FLT, FXD and 2000 FXST (25247-99)
45475 2001-14 FLT, FXD, FXST (25369-01A)
9945 Acorn screw washer kit
9946 Chrome knurled allen screw kit
24470 Chrome polished allen screw kit
These form fitting chrome steel covers fit over stock cam
cases. No need to remove cam case or disturb cams or
gears. Covers are held in place by existing screws.
45411 2000-on Big Twin
S&S Billet Twin Cam Style Gear Covers 99-03
Chrome Allen Style
PCPApplication
9946 TC 88, Dyna, FLT 1999-on (Colony, 20 pcs)
1-20
Machined aluminum billet gear covers match the gear covers
supplied in the S&S TC style oil pumps. Note: S&S billet
gear covers are not compatible with 1999-01 EFI model engines which require a cam position sensor in the gear cover.
For 88/95/103”.
316516 Polished
1063774 Chromed
www.prestoncycle.com
Twin Cam
44134
44068
45307
59172
44135
45416
45523
59185
59187
44138
45062
45726
63043
5 Hole Timing Covers for Twin Cam Models 1999-on
PCP
Type
Design
Finish
Fitment
44068
Points
Raised skull with black eyes
Black with chrome skull
2000-11 FLST, FXST, 1999-11
FXD
44134
Points
Modern Skull
Chrome with raised black skull
1999-on TC
44135
Points
Pirate skull
Black with chrome border and skull
1999-12 TC
44138
Points
Skull
Chrome with horizontal holes
1999-on TC
45062
Timing
LTR-Eagle Spirit
Chrome
1999-on TC
45307
Timing
Plain, smooth
Chrome
1999-on TC (32679-99)
45416
Points
Raised Skull with black eyes
Chrome
1999-on TC
45523
Points
Flame
Chrome
1999-on TC
45726
Timing
Red Baron-double edge
Chrome
1999-on TC
59172
Derby
Raised skull with Black eyes
Chrome
1999-09 BT
59185
Derby
Maltese Cross
Chrome
1999-on TC
59187
Points
Maltese Cross
Chrome
1999-06 (32102-01)
63042
Derby
Slotted deep dish
Chrome
199-06 TC except Touring
63043
Timing
Slotted deep dish
Chrome
1999-06 (32102-01)
TC Timer Cover Screws
9953
9954
Chrome acorn heads
Chrome button heads
www.prestoncycle.com
1-21
Twin Cam
S&S High Performance Tappets for Twin Cam
These tappets are standard equipment in the S&S complete
124” Twin Cam engine and are a good choice for any stock or
high performance application. Set of 4.
335351 Twin Cam 1999-2015 & XL 2000-15 With HL2K
335350 Twin Cam 1999-2015 & XL 2000-15 W/O HL2K
335338 HL2T (hydraulic lifter limited travel spacers) 4 pcs
3300175
Jims Twin Cam Powerglide II Tappet
The next generation tappets from Jims for big power, big
torque and increased spring weight, feature a hand honed
hydraulic cavity for reduced valve train noise. Advantages of
Powerglide II:
•billet body with premium hydraulic unit
•30% increase in dynamic load capacities
•10% increase in lubrication capacity for hydraulic unit & top end
•100% increase in lubrication capacities for roller, cams, & cam bearings (increases cooling)
PCPFitment
31641 TC 1999-on, XL, Buell 2000-on (STD O.D. .8420”)
31642 Oversize +.001
31643 Oversize +.0015”
3300174
S&S Premium High Performance Tappets
Intended for demanding street riders and racers. Close tolerances offer significantly lower leak down rates, consistant
quiet operation and stability at high RPMs. Features low mass
silicon nitride check valve and lighter check ball spring for
faster pump ups. Great for high lift cams and performance
valve springs. Set of 4. Fits 1999-2015 BT
3300174 Tappet set with HL2T spacer kit
3300175 Tappets set only
1-22
Tappet Body BT 1999-on Twin Cam
29007 T/L 1999-on (18538-99B)
www.prestoncycle.com
S&S TC Cylinder Kits
9100199
92-1200 Series Pistons for 95” Hot Set Up Kits
•pistons have a 5.3cc pop up dome
•compatible with stock or S&S Super Stock heads
•enlarged valve pocket recesses for oversize valves and
higher lift cams
Kits include set of pistons, rings, wristpins and clips.
95”
Moly
106”
Pistons Rings Pistons Size
921200941290 921210 Standard
921204941294 921214 +.005
921201941291 921211 +.010
921202941292 921212 +.020
Pistons work with 4” Stroke flywheels in 88” engines to produce 95
cubic inches
S&S TC 95”/106” 1999-06 with 3-7/8” Cylinders
•Cylinder kits include cylinders, fitted piston kit, head, base
and exhaust gaskets.
•can be used as stock replacement
•stock-like fin profile with thicker casting in critical areas
•requires no crankcase machining to install
Cylinder sets without pistons are bored slightly under
nominal size and are not honed. Hone to +/-0.0001” for
correct clearance when installing S&S pistons.
S&S 3-7/8” Bore Cylinder Specifications
Compression Ratio
Displacement
Stroke
Length
Stock
89CC S&S
95”
4”
4.937”
9.7:1
9.3:1
10.3:1
106” Stroker
4-½”
4.937”
10.1:1
9.8:1
10.8:1
SilverBlack
91002079100208
91002009100204
91001999100203
79cc S&S
Description
Cylinders only
95” Cylinders and pistons
106” Cylinders and pistons
Replacement Pistons for 106” Hot Set Up Kits
All piston kits include rings, wristpins and clips.
Piston Kits Forged
Moly Rings
Standard
921210
941295 (3.875”)
+.005
921214941299
+.010
921211941296
+.020
921212941297
S&S TC Cylinder Studs
Used in S&S Twin Cam style crankcases.
312340 16834-99 (8 pk)
www.prestoncycle.com
1-23
S&S TC Cylinder Kits
S&S 4-1/8” Bore Twin Cam Style Cylinders and
92-1556 Series Pistons for 99-06 124” Engines
The 92-1566 series pistons are 4-1/8” bore pistons originally
designed for the S&S Super Sidewinder Plus V2 style engine,
may also be used in 4-1/8” bore Twin Cam style cases.
Displacement: 124”
Stroke: 4-5/8”
Bore: 4-1/8”
Cylinder Length: 5.013”
Compression for Stock heads: 10.8:1
Recommended piston fit for forged pistons:
Close: .0020” - .0025”
Loose: .0032” - .0045”
Piston deck height: 1.050”
Cylinders
Cylinder with piston kits include cylinders, piston kit, head
gaskets, base gaskets and exhaust gaskets. These cylinders are designed to be used with the S&S 4-1/8” bore
Twin Cam style crankcase. This crankcase has a 6” cylinder
deck height.
Item
SilverBlack
Cylinders with pistons
91002159100223
Replacement Piston Kits For S&S 89cc/91cc (Flat Top)
All piston kits include rings, wristpins and clips.
Piston Kits Forged
Moly Rings
Standard
921556
941400 (4.125”)
+.010
921557941401
+.020
921558941402
+.030
921559941403
S&S 106” Big Bore Kits for 2007-on Big Twins
Use these kits for an easy way to get more displacement without rebalancing flywheels or boring the crankcases. Cylinders
can be swaped out without boring or splitting the cases. S&S
suggests that these 3.927” bore cylinders have the largest
bore that can be safely used with stock spigot diameter. S&S
cylinders are made from a strong material that performs better
than stock cylinders and S&S does not recommend boring
stock cylinders to fit the 3.927” pistons.
This kit yields excellent results with stock cylinder heads,
but a performance cam is recommended to get the best
performance and to make the engine easier to turn over
and start-up. However, for the best performance and easiest
starting, S&S recommends S&S cylinder heads which provide
increased head flow and increased power. Additionally S&S
heads are machined to accept S&S electric or manual compression releases for easy, reliable starting.
For most applications S&S recommends the S&S single bore
EFI throttle body with a teardrop air cleaner or tuned induction. 2008-on Touring models will need to use the stock intake
or Screamin’ Eagle® 58mm throttle body and race tuner or
Pro EFI Super Tuner.
Features:
- 106” Displacement
- 4-3/8” Stroke
- 3.927” Bore
- 10:1 CR using stock heads
- 9.7:1 CR using S&S 89cc heads
- Forged flat top pistons
- Choice of silver or black wrinkle powdercoat to match stock
KitFinish
9100202 Silver cylinders & standard pistons
9100206 Black powdercoat cylinders & standard pistons
1063690 Std forged pistons & rings (3.927” bore)
1064416 +.010 forged pistons & rings
1-24
www.prestoncycle.com
TC Cylinder Kits
S&S 103” 2007-15 TC 3-7/8” Cylinder Set
•can be used as stock replacement
•stock-like fin profile with thicker casting in critical areas
•requires no crankcase machining to install
Cylinder sets without pistons are bored slightly under
nominal size and are not honed. Hone to +/-0.0001” for
correct clearance when installing S&S pistons.
S&S 3-7/8” Bore Cylinder Specifications
Displacement
Stroke
Length
103”
4-3/8”
4.937”
Compression Ratio
Stock
89CC S&S
79cc S&S
10.1:1
9.8:1
10.8:1
SilverBlack Description
91002079100208 Cylinder set
VT TC-88 to 95” Big Bore Kits 2000-06
Available in choice of black wrinkle or silver finish. These
cylinder sets will increase TC-88 engines to 95 cubic inches.
No crankcase machining required for installation. Cylinder kits
include pistons prefitted to cylinders and head gaskets.
10.25:19:1
Cast Forged Finish
-
34836
Black
3483734838Silver
Sifton Cylinder Kits
9.3:110.5:1
Cast* Forged Finish
3483934840Black
3484134842Silver
* 9.3:1 Sifton cylinder kits have moly coated pistons
S&S 3-7/8” Bore Forged Piston Kits for 103” Engines
•forged and coated pistons with 5cc pop up dome
•compatible with stock or S&S Super Stock heads
•enlarged valve pocket recesses for oversize valves and
higher lift cams
Kits include set of pistons, rings, wristpins and clips.
PCPSize
1060432 Standard
1060433 +.005
1060434 +.010
www.prestoncycle.com
Colony Cylinder Base
Stud Kit TC 1999-on
Heat treated alloy steel studs
equal or surpass original equipment.
72083 Twin Cam 88 1999-on
(8 pack)(16834-99)
1-25
Twin Cam
Topline Stock Finish TC Cylinder 1999-06
Each cylinder kit includes 1 piston with rings, pin and clips.
Available in either silver or black finish. Each.
65223 Silver (16525-99)
65224 Black (16526-99)
VT TC 2000-06 Big Bore Cylinder & Piston Kit
Use these kits to increase Twin Cam engines to 95 cubic
inches. No crankcase machining required for installation.
Cylinder kits include pistons prefitted to cylinders and head
gaskets. 10.25:1 piston set.
PCPFinish
53072 Black
Twin Cam Hastings Piston Ring Sets- Moly
11056
Twin Cam rings are sold in sets to do 2 pistons (1 engine).
Moly
Ring
Size
Engine Type
96” TC 2007-on
88” TC
95” BB TC
STD
35271
35275
35279
.005
35272
35276
35280
.010
35273
35277
35281
.020
35274
35278
(1584cc)
18644
Piston Service Components
11056
32357
18644
31356
32114
31356
Lock ring (22097-99) (10 pk)
Piston pin (22132-99) (each)
Preston’s piston pin bushing (24316-99) (pair)
Jims piston pin bushing (24316-99) (pair)
Kibblewhite piston pin bushings (24316-99) (pair)
1.0190” o.d. Bushing does not include oil holes,
Must be drilled after installation
VT 107” TC-88 Big Bore Cylinder Kit 2000-06
Requires case machining and includes a forged 10.5:1 piston
kit. Choice of silveror black highlighted cylinders.
PCPItem
34804 Black Kit
34805 Silver Kit
35578 Piston only
25408 Top end gasket kit
1-26
32357
www.prestoncycle.com
Twin Cam
Wiseco TC88 Flat Top BB Piston Kit 1550CC
Piston kit fits 1999-06 95 cubic inch models and offers 9:1
compression and 4.000” stroke. Top ring is .047”, 2nd ring is
.047” and oil ring is .079”. Recalibration is required when
these kits are used. Cylinder boring is required. Kit
includes forged pistons with Armour Glide coated skirt, rings,
circlips, top end gasket kit and chrome piston pins. Cometic
gasket kit included.
PCPBore
35896 STD 3.875” (VT2719)
35897 +.005 3.880” (VT2720)
35898 +.010 3.885” (VT2721)
35929 Cometic gasket kit (W5786)
Wiseco TC 88 BB Piston Kit to 95” 10.5:1
1999-06
.047 Top and second ring, .079 oil ring, 4” stroke. Screaming Eagle ignition module recommended, 95 cu in. cylinders
required, for carb models only.
Cometic gasket included with these kits.
This kit requires cylinder boring and recalibration.
35880 STD (VT2709)
35881 .005 (VT2710)
35882 .010 (VT2711)
35883 .020 (VT2712)
35929 Cometic gasket kit (W5786)
Wiseco 103” 1691cc BB Piston Kits 1999-13
9:1 CR Reverse Dome
K
VT
Displ.
Bore
35926
-
1691cc
3.875”/1.25
35928
-
1700cc
3.885”/.135
Stroke
Dome Specs
Wiseco
4.375”
Volume: -11.5cc
Int. Depth: -.205”
Ext. Depth: -.205”
Diam.: 2.250”
K2751
Stroke
Dome Specs
Wiseco
4.375”
Volume: -2.2cc
Int. Depth: -.205”
Ext. Depth: -.205”
Diam.: 2.250”
Stroke
Dome Specs
K2753
9.6:1 CR Flat Top
Wiseco 103” 1691cc BB Piston Kits
1999-13
Fits TC88 1999-06 w/4-3/8” stroke crank, TC96
2007-14, TC 103 2010-15 drop-in kit. K Kits include
forged pistons, rings, circlips and chrome piston
rings. VT kits also include a Cometic gasket kit.
•Recalibration and cylinder boring is required
•Compatible with Screamin’ Eagle cylinder heads
•ArmourGlide skirt coated pistons and VM rings
K
VT
Displ.
Bore
35970
35987
1691cc
3.875”/1.25
35971
35988
1700cc
3.885”/.135
K2761
VT2761
K2763
VT2763
10.5:1 CR Domed
K
VT
Displ.
Bore
35867
35877
1691cc
3.875”/1.25
35868
35878
1695cc
3.880”/.130
35869
35879
1700cc
3.885”/.135
4.375”
Volume: +5cc
Int. Depth: -.205”
Ext. Depth: -.205”
Diam.: 2.250”
Wiseco
K2754
VT2754
K2755
VT2755
K2756
VT2756
Valve pocket depths measured measured from deck height
35929
Cometic gasket kit
Wiseco TC88 Standard Bore Piston Kit
Piston kit fits 1999-06 88 cubic inch models and offers 10.5:1
compression and 4.000” stroke. A Screamin’ Eagle ignition
module is required to use this kit. Includes forged pistons
with Armour Glide, VM rings, circlips, and chrome piston pins.
PCPBore
35990 STD 3.750” (K2726)
35995 Cometic gasket kit
www.prestoncycle.com
1-27
Twin Cam
Chrome Billet Lifter Bases
59868 TC models
Chrome Lifter Block Covers TC Softail
Not for use with chrome interface cover OEM# 66510-00.
64233 18262-00
TC Chrome Lifter Base Set 1999-on
Replaces 17964-99 front and 17966-99 rear.
30092
S&S Twin Cam Billet Tappet Covers
Fits stock and S&S Twin Cam style crankcases.
335601 Polished
1063883 Chrome
S&S Special Piston Cooling Jet Kit
Twin Cam engines with strokes greater than stock, require
special piston cooling jets to avoid contact with pistons at the
bottom of the stroke. S&S cooling jets provide an extra .150”
of clearance between the jet and piston skirt compared with
stock jets. These special jets are included in the S&S 107”
and 116” Twin Cam Style Sidewinder kits, Hot Set Up kits and
in the new S&S Super Sidewinder Plus Long Block Engines.
S&S piston cooling jets are sold in kits of two jet assemblies
with o-rings and screws.
312026
1-28
www.prestoncycle.com
Twin Cam
Jims Twin Cam 88 Billet Lifter Covers
High tech lifter block covers for use on all TC 88 engines
1999-on. These covers are CNC machined from billet 6061T6 aluminum and have a beautiful chrome finish. Use with
Jims #31647 hydrosolid or #31649 Powerglide tappets.
31266
Chrome Billet Pushrod Cover & Lifter Base Kit
Andrews Twin Cam EZ-Install Pushrods
30091 Fits Twin Cam models.
EZ-Install pushrods can be installed in an engine without
removing fuel tanks or rocker boxes. Available in anodized
aluminum and chrome moly tubing.
292188 4 Aluminum pushrods
292088 4 Chrome moly pushrods
TC-88 Quick Install Pushrods
This kit allows installation without removal of heads on TC engines 1999-on. Chrome moly construction provides superior
strength.
34111
www.prestoncycle.com
1-29
Twin Cam
S&S Pushrod Cover Kits
Includes top and bottom covers, cover cap, cover spring, and
spring washer for four pushrods.
PCPApplication
934039 TC 1999-on, Evo BT 1984-99 and XL 1986-90
934038 As above, for engines 1” or more taller than stock
S&S TC Adjustable Pushrods & Cover Kit
Kit includes chrome-moly pushrods, gaskets, o-rings, retainer
clips, and upper pushrod covers that have been designed to
provide a more stable and rigid cover assembly. Requires the
removal of rocker covers for installation. (1984-99 style push
rod covers are required to allow push rod adjustment)
935095 Kit (96-103-106”)
935096 Pushrods only
S&S Quickee Pushrod and Cover Set
Chrome moly steel pushrods with chrome plated covers to fit
1999-on. Twin Cams. Can be installed without the removal of
rocker boxes.
1066051 Kit
935122 Pushrods only
S&S Quickie Pushrods
The threaded adjuster screws into the pushrod until the
threads disengage and the adjuster simply slides into the
pushrod making installation or removal a snap. Once the
pushrod is installed and adjusted the locknut prevents the adjuster from moving. The ball ends of the pushrods are drilled
so that oil can flow through the pushrod.
PCPApplication
Displacement
935122 1999-on Twin Cam
88-124”
**Note: 1984-99 EVO style push rod covers are required for
access to the Quickie push rod adjusters in Twin Cams
S&S Time-Saver Adjustable Pushrods
No need to remove the rocker covers. Can be installed with
stock pushrod tubes. Fits 2007-15 BT.
9300053
1-30
www.prestoncycle.com
Twin Cam
Complete Pushrod Cover Kits
Visible parts are all chrome and includes upper covers, inner
cover, and lower covers.
34107 1999-on TC
Chrome Billet Pushrod Cover Kit TC
These aluminum pushrods feature a groove design and beautiful chrome plating. Fits all 1999-on Twin Cams.
61072 18096-00A
Chrome Lower Pushrod Cover Kits
Chrome Upper Pushrod Cover Kits (outer)
Each kit contains 4 chrome plated retaining clips, 4 chrome
plated cups, 4 springs, 4 cork gaskets, and 4 steel washers.
Exact duplicates.
9970 Twin Cam 88 1999-on (1-3/4” clips)
These stock pushrod covers are beautifully plated duplicates
of the Harley part. Available in sets of 4 with cork gaskets for
Twin Cam 88 1999-on.
9968
Twin Cam Chrome Billet Pushrod Cover Set
Upper, Inner Pushrod Covers
9969
Twin Cam 88 1999-on
Includes chrome pushrod covers, seals and necessary
o-rings. Fits Twin Cam and replaces 18096-00.
59260
www.prestoncycle.com
1-31
Twin Cam
AV&V Stock Replacement Valve Guides for Evo
AV&V High Performance Valve Guides for Evo
and Twin Cam Models to 2004
and Twin Cam Models to 2004
These manganese bronze guides are stock length for direct
stock replacement. Use with .530” OEM style valve seals.
Same guide will fit intake or exhaust.
PCP OversizeO.D.
I.D.
31801 STD.5625”.308”
31802 .001”.5635” .308”
31803 .002”.5645” .308”
31804 .003”.5655” .308”
31805 .004”.5665” .308”
31806 .025”
.5875”.308”
These manganese bronze guides have a shortened seal area
and are tapered for use on high lift and high flow applications.
Use with .530” valve seals.
IntakeExhaustOversize O.D.
I.D.
3175631768 STD
.5625”.308”
3175731769 .001”
.5635”.308”
3175831770 .002”
.5645”.308”
3175931771 .003”
.5655”.308”
3176031772 .004”
.5665”.308”
3176131773 .005”
.5675”.308”
3176231774 .006”
.5685”.308”
3176331775 .008”
.5705”.308”
3176431776 .010”
.5725”.308”
3176531777 .012”
.5745”.308”
3176631778 .015”
.5775”.308”
3176731779 .025”
.5875”.308”
S&S Replacement Valves Evo and TC
Use 2.000” intake valve and 1.605” exhaust valve for all S&S
89cc TC cylinder heads and all S&S evolution cylinder heads.
PCPDescription
902001 1.605” Exhaust valve
902029 Intake valve +.005” stem diameter for rebuilds
Rowe 7mm TC Valves and Guides 2005-on
AV&V Valve Seal Drivers
Allows easy, precise installation
of OE or viton valve seals. Seal
is installed in the centreline with
the guide. Prevents comeback
caused by a loose seal.
PCPDescription
31824 For all 7mm valve seals
31825 For all 5/16 valve seals
1-32
Valves
PCPType Size
32221 IntakeStd.
32222 Intake
+1/16” OS
32223 Intake
.100” OS
32224 ExhaustStd.
GuidesSize
17700 Std.
17701 .001
17702 .002
17703 .004
17704 .006
www.prestoncycle.com
Valve Guides & Springs
Kibblewhite Twin Cam 88 1999-04 with 5/16”Stem Valves
32156
32154
32158
Performance Rebuild Ovate Wire Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon based wire that
is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Valve Guides
Shouldered guide w/Viton Seal
Shortened for .600” Lift
Performance Rebuild Beehive Valve Spring Kits
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32154
.600”
160-170 lb.
370 lb. @ .600”
Steel
A
0.650”
D
1.400”
32155
.630”
180-190 lb.
370 lb. @ .630”
Steel
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
Retainers
*32155 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit
Intake-G (Std. 0.5620”)
C630 Bronze
Includes springs, retainers, keepers, collars and spring shims.
PCP
Lift
Seat Pressure
32156
.550”
150-160 lb.
380 lb. @ .550”
Titanium
32157
.550”
150-160 lb.
380 lb. @ .550”
Steel
Retainers
Lightweight Racing Valve Spring Kit
PCP
Size
32162
Std.
32163
+0.001”
32164
+0.002”
Retainers
32165
+0.004”
380 lb. @ .600”
Titanium
32166
+0.010”
170-180 lb.
380 lb. @ .600”
Steel
.655”
185-195 lb.
450-460 lb. @ .655”
Titanium
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32158
.600”
170-180 lb.
32159
.600”
32160
32161
•Black Nitroneg stems
Black Diamond Valves
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32334
IN
1.840”/46.74mm
0.3100”
23°
4.445”
Standard
(OEM 18074-83A)
32335
IN
1.900”/48.26mm
0.3100”
28°
4.420”
Oversize
32176
IN
2.000”/50.80mm
0.3100”
23°
4.445”
Oversize
A
0.650”
D
1.450”
4.505”
Standard
(OEM 18085-99)
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
32358
EX
1.565”/39.75mm
0.3100”
17°
Exhaust-G (Std. 0.5620”)
C630 Bronze
Recommended Valve Guide Seals-4 Pack
PCP
Type of Seal
Guide Top Diam.
32256
IN/EX, style 5, Steel clad Viton
0.420”
32259*
IN/EX, style 6, Solid White PC style Seal
0.415”
*May require use of seal cutter
www.prestoncycle.com
PCP
Size
32167
Std.
32168
+0.001”
32169
+0.002”
32170
+0.004”
32171
+0.010”
1-33
Kibblewhite
Kibblewhite Twin Cam 88 1999-04
Valve Guides
Shouldered guide - .420” Top
Shortened for .600” Lift
Valve Guides
OEM Style - .420” Top
A
0.375”
D
2.025”
B
0.375”
E
-
C
1.700”
F
OEM Style Replacement Seals
0.3098”
Guide Ø
Stem Ø
UM
32345
0.420”
0.3125”
10 pack
Seal Installation Tools
Intake/Exhaust-G
(Std. 0.5620”)
C630 Bronze
PCP
•For OEM style replacement seals
Cast Iron
PCP
UM
32211
Each
PCP
Size
PCP
Size
32237
Std.
32283
Std.
32238
+0.001”
32284
+0.001”
PCP
32239
+0.002”
32285
+0.002”
32213
32240
+0.003”
32286
+0.003”
32241
+0.004”
32287
+0.004”
32242
+0.010”
32288
+0.010”
Installation Protectors
Stem Diam.
UM
0.3125”
Pair
A
0.650”
D
1.400”
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
Intake-G
(Std. 0.5620”)
C630 Bronze
Replacement Keeper Set
PCP
32218
PCP
Size
PCP
Size
32183
Std.
32247
Std.
32184
+0.001”
32248
+0.001”
UM
32185
+0.002”
32249
+0.002”
8 pack
32187
+0.003”
32250
+0.003”
32188
+0.004”
32251
+0.004”
32189
+0.010”
32252
+0.010”
Application
OEM Style
Cast Iron
Cylinder Dowels
•All Twin Cam models
PCP
32344
O.D.
0.4365”
UM
Rocker Arm Bushings
4 pack
•Constructed of SAE660 bearing bronze bar
stock. Sold in pack of 8.
PCP
32233
Application
OD
1986-11
0.6795”
A
0.650”
D
1.450”
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
Exhaust-G
(Std. 0.5620”)
C630 Bronze
Cylinder Studs
•Machined from fine grain, heat treated, aircraft quality steel with black oxide finish
•Centerless ground OD
•Black oxide finish
1-34
PCP
Application
UM
32346
All Twin Cam
8 pack
Powdered Metal Valve Seats
•Recommended for Evo’s
•Compatible with leaded and unleaded fuels
including methanol and ethanol fuel blends
•Excellent thermal characteristics
A
Size
PCP
Size
32190
Std.
32277
Std.
32191
+0.001”
32278
+0.001”
32192
+0.002”
32279
+0.002”
+/-.0005
C
+/-.0005
Type
32193
+0.003”
32280
+0.003”
1.535”
0.453”
IN
32194
+0.004”
32281
+0.004”
2.0070”
1.562”
0.450”
IN
32195
+0.010”
32282
+0.010”
32369
2.1320”
1.690”
0.450”
IN
32365
1.7570”
1.375”
0.450”
EX
PCP
+/-.0002
32366
1.9690”
32367
B
Cast Iron
PCP
www.prestoncycle.com
Kibblewhite
Kibblewhite Twin Cam 88”-103” 2005-2015 with 7.0mm Valve Stems
Performance Rebuild Ovate Wire Beehive
Spring Kits
Valve Guides
Shouldered guide uses OEM or Kibblewhite
style seals. 7.0mm I.D.
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits (Beehive)
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32293
.600”
160-170 lb.
370 lb. @ .600”
Steel
32294
.630”
180-190 lb.
375 lb. @ .630”
Steel
Retainers
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
0.800”
F
0.2750”
*32294 Not recommended for lifts over .630”
Intake-G
(Std. 0.5620”)
Lightweight Racing Valve Spring Kit (Std springs)
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32295
.600”
170-180 lb.
375-385 lb. @ .600”
Steel
32296
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
C630 Bronze
Retainers
Black Diamond Valves
•Black Nitroneg stems
Cast Iron
PCP
Size
PCP
Size
32300
Std.
32308
Std.
32301
+0.001”
32309
+0.001”
32302
+0.002”
32310
+0.002”
32303
+0.010”
32312
+0.010”
For Twin Cam 2005-13
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32347
IN
1.805”/45.85mm
0.2755”
1.700”R
4.420”
Standard
(18074-05)
32348
IN
1.900”/48.26mm
0.2755”
28°
4.420”
Oversize
32349
EX
1.575”/40.00mm
0.2755”
22°
4.520”
Standard
(18085-05)
32350
EX
1.615”/41.40mm
0.2755”
34°
4.520”
Oversize
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
1.030”
F
0.2750”
Exhaust-G
(Std. 0.5620”)
C630 Bronze
PCP
Cylinder Studs
•Machined from fine grain, heat treated, aircraft quality steel with black oxide finish
•Centerless ground OD
•Black oxide finish
PCP
Application
UM
32346
All Twin Cam
8 pack
Powdered Metal Valve Seats
•Recommended for Evo’s
•Compatible with leaded and unleaded fuels
including methanol and ethanol fuel blends
•Excellent thermal characteristics
A
PCP
+/-.0002
+/-.0005
B
+/-.0005
C
Type
32366
1.9690”
1.535”
0.453”
IN
32367
2.0070”
1.562”
0.450”
IN
32369
2.1320”
1.690”
0.450”
IN
32365
1.7570”
1.375”
0.450”
EX
Cast Iron
Size
PCP
Size
32304
Std.
32318
Std.
32305
+0.001”
32319
+0.001”
32306
+0.002”
32320
+0.002”
32307
+0.010”
32321
+0.010”
7mm Valve Guide Seals
Cylinder Dowels
•All Twin Cam models
PCP
32344
O.D.
0.4365”
•OEM style, sold each.
Replacement Keepers
PCP
UM
32089
Application
UM
2004-11 7mm
Pair
PCP
Type
Guide Ø
32090
IN/EX, Style 3, Tophat
0.562”
4 pack
www.prestoncycle.com
1-35
Twin Cam
AV&V Tulip Replacement Valves for Twin Cam 1999-04
One piece tulip valves are forged from racing grade stainless steel alloy, heat trated and ground
to a microfinish. Valves have a hardened tip to prevent premature wear when used in high lift
applications. Features a 45 degree angle below the lock groove to reduce stress in this area
and to facilitate valve seal installation. Available in hard black or chrome finish.
PCP#
Type
Head
Diam.
Overall
Length
Stem
Diam.
Coating
31791
Exhaust
1.570”
4.525”
.3106”
Black
AV1570
31792
Exhaust
1.610”
4.525”
.3106”
Black
AV1610D
31793
Exhaust
1.610”
4.525”
.3106”
Chrome
AV1610DC
31794
Intake
1.900”
4.440”
.3108”
Black
AV1900
31795
Intake
1.900”
4.440”
.3108”
Chrome
AV1900C
AV&V #
31796
Intake
1.940”
4.440”
.3108”
Black
AV1940C
31797
Intake
1.940”
4.440”
.3108”
Chrome
AV1940C
31798
Intake
2.020”
4.440”
.3108”
Black
AV2020A
AV&V Extreme Duty Replacement Valves for Twin Cam 1999-04
PCP#
Type
Head
Diam.
Overall
Length
Stem
Diam.
Coating
Stem
AV&V #
31660
Exhaust
1.570”
4.525”
.3106”
Black
5/16 stem
HD12
31661
Intake
1.845”
4.455”
.3108”
Black
5/16 stem
HD-11
31795
Intake
1.900”
4.440”
.3108”
Chrome
5/16 stem
AV1900C
31797
Intake
1.940”
4.440”
.3108”
Chrome
5/16 stem
AV1940C
AV&V Triple Groove Valves with 7mm Stem for Twin Cam 2005-12
PCP#
Type
Head
Diam.
Overall
Length
Stem
Diam.
31812
Exhaust
1.575”
4.560”
.2755”
Black
7mm stem
AV1575-7TGB
31830
Exhaust
1.575”
4.560”
.2755”
Chrome
7mm stem
AV1575-7TGC
31831
Exhaust
1.610”
4.555”
.2755”
Black
7mm stem
AV1610-7TGB
31813
Intake
1.810”
4.455”
.2757”
Black
7mm stem
AV1810-7TGB
31814
Intake
1.810”
4.455”
.2757”
Chrome
7mm stem
AV1810-7TGC
31815
Intake
1.850”
4.455”
.2757”
Black
7mm stem
AV1850-7TGB
31816
Intake
1.850”
4.455”
.2757”
Chrome
7mm stem
AV1850-7TGC
Coating
Stem
AV&V #
Universal Ball Hones
Kibblewhite precision valve guide hones
are durable enough to size C630 bronze
and cast iron valve guide materials.
PCPSize
32115 7.0mmm
32116 5/16” (.3125”)
32117 3/8” (.3750”)
1-36
www.prestoncycle.com
Valve
Fluoro-Viton Valve Seals (5 packs)
Seals are made from a fluoro-viton polymer with teflon added
to prevent valve to seal friction. A metal spring keeps constant
seal to valve tension to prevent oil consumption. These seals
are then bonded to a steel jacket that provides a secure fit to
the guide. The internal ribs are designed to allow for installation without any tools, but hold secure after installation.
PCP StemGuide
32276
6mm .347 (hat style)
32275
7mm
.562 (hat style)
32274
5/16”.420
32269
3/8”.531
32272
3/8”.625
32271
11/32”.531
Valve Stem Keepers
Replaces 18260-02 for BT 2005-on and XL 2004-on.
30019
(4 pair)
AV&V Valve Seats
These valve seals are made from heat and wear resistant
high quality alloy steel, and are manufactured with clear
identification markings and radius edges for easy installation.
These seats will resist intense valve pounding and effectively
dissipate heat for consistant valve sealing. These valve seats
will increase in hardness during engine break-in period.
Exhaust and intake valves are made from the same material,
choose size as needed. Machining may be required.
PCP O.D.I.D. Thickness
31787 1.630”1.180” .385”
31789 1.757”1.371” .315”
31780 1.757”1.410” .430”
31788 1.880”1.439” .410”
31784 1.944”1.570” .400”
31781 2.008”1.610” .440”
31782 2.040”1.590” .420”
31790 2.068”1.750” .315”
31783 2.070”1.610” .460”
31785 2.135”1.750” .400”
31786 2.163”1.750” .455”
Kibblewhite Cylinder Studs
•Machined from fine grain, heat treated, aircraft quality steel with
black oxide finish
•Centerless ground OD
•Black oxide finish
PCP
Application
UM
32346
All Twin Cam
8 pack
Kibblewhite Cylinder Dowels
•All Twin Cam models
PCP
32344
O.D.
0.4365”
Kibblewhite Powdered Metal Valve Seats
•Recommended for TC 1999-10 & XL 2004-11
•Compatible with leaded and unleaded fuels including methanol and
ethanol fuel blends
•Excellent thermal characteristics
O.D.
PCP
+/-.0002
+/-.0005
I.D.
+/-.0005
HT.
Type
32366
1.9690”
1.535”
0.453”
IN
32367
2.0070”
1.562”
0.450”
IN
32369
2.1320”
1.690”
0.450”
IN
32365
1.7570”
1.375”
0.450”
EX
UM
4 pack
www.prestoncycle.com
1-37
Valve Springs
S&S Sidewinder .650” Lift Valve Spring Kits
Kits fit stock style 2005-15 Twin Cam 96/103 Big Twins with
7mm valve stems and all S&S CNC ported heads. Made from
high silicon, micro peened and nitrided kobe alloy wire. Includes valve keepers, top and bottom collars, springs, shims
and valve guide seals. Note S&S recommends the use of
roller rocker arms be used with lifts over .585”
Lift
Installed
Height
Seat
Force
Force @
Max Lift
Max
RPM
.650”
1.860”
178 lb.
376 lb.
6500
9000050 TC 99-04 with 5/16” stems
1065909 TC 05-15 with 7MM stems
S&S High Performance Valve Spring Kits
Kits fit stock style and S&S Super Stock Heads on 1984-04
BT and 1986-03 XL. O.D. of outer spring fits within stock
spring compartment. Used with “no shoulder” style valve
guides and special keepers fit stock 5/16” diameter stemmed
valves and S&S collars only (these guides can be retrofitted
to early BT V2 heads equipped with “shoulder” style valve
guides). Features patented steel top collars specially drilled to
lighten and allow oil to cool springs. Includes 4 of .015” and 4
of .030” shims. Kits are good for up to .640 lift
902077 Kit with steel top collars
902078 Kit with titanium top collars
Note: Stock valve springs in 1999-04 Big Twin models can
handle cams with valve lifts as high as .515”. Stock valve
springs in 2005-on engines can accomodate valve lifts up to
.590”.
9000593
S&S .585” Lift Valve Spring Kits
Kits fit Twin Cam 88 Big Twins with stock heads and all S&S
Super Stock heads. Dual springs reduce the risk of valve
float. Suitable for performance applications and accomodates
camshaft lift to 0.585”. Includes inner and outer springs, valve
keepers, top and bottom collars, shims and valve guide seals.
Lift
Installed Height
Seat Force
Force @Max Lift
Max RPM
.585”
1.850”
135 lb.
335 lb.
6500
PCPFitment
9000593 1984-04 BT with 5/16” valve stems
9000594 2005-15 BT and XL with 7mm stems
S&S .640” Lift Dual Valve Spring Kits
Kits fit Twin Cam 88 Big Twins with stock heads and all S&S
Super Stock heads. Dual springs reduce the risk of valve
float. Suitable for performance applications and accomodates
camshaft lift to 0.640”. Includes inner and outer springs, valve
keepers, top and bottom collars, shims and valve guide seals.
Lift
Installed Height
Seat Force
Force @Max Lift
.640”
1.800”
130 lb.
325 lb.
PCPFitment
9000420 2005-15 BT with 7mm stems
Andrews Heat Treated Spring Collars
Provides .050” more spring travel than stock collars. Collars
are stronger and 10% lighter than stock collars. Use stock
keepers. Fits TC 19899-04.
293115
1-38
www.prestoncycle.com
Valve Springs
Kibblewhite TC 88 99-04 with 5/16”Stem Valves
Kibblewhite Twin Cam 88”-103” 2005-2014 with
7.0mm Valve Stems
32156
32293
“Performance Rebuild” Ovate Wire Beehive
Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32154
.600”
160-170 lb.
370 lb. @ .600”
Steel
32155
.630”
180-190 lb.
370 lb. @ .630”
Steel
Retainers
*32155 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit
Includes springs, retainers, keepers, collars and spring shims.
PCP
Lift
Seat Pressure
32156
.550”
150-160 lb.
380 lb. @ .550”
Titanium
32157
.550”
150-160 lb.
380 lb. @ .550”
Steel
Retainers
Performance Rebuild Ovate Wire Beehive
Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32293
.600”
160-170 lb.
370 lb. @ .600”
Steel
32294
.630”
180-190 lb.
375 lb. @ .630”
Steel
Retainers
*32294 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit
Includes springs, retainers, keepers, and lower collars.
Lightweight Racing Valve Spring Kit
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
Retainers
32295
.600”
170-180 lb.
375-385 lb. @ .600”
Steel
Titanium
32296
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
PCP
Lift
Seat Pressure
32158
.600”
170-180 lb.
32159
.600”
170-180 lb.
380 lb. @ .600”
Steel
32160
.655”
185-195 lb.
450-460 lb. @ .655”
Titanium
32161
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
380 lb. @ .600”
Retainers
Crane Valve Spring Sets
Manufactured from the finest quality spring wire and
precision wound. Kits come with choice of chromoly
4140 steel retainers or titanium retainers. Chromoly
retainers offer strength and durability while eliminating
inaccurate assembly heights. Titanium retainers are
strong and light which allows the valve to move easily, producing more power. Note # is the symbol that
denotes pounds.
Crane Valve Spring and Retainer Kits for Twin Cam 88 & 96 1999-04
PCP
Nominal Diameter
Retainer Type
Seat Pressure &
Installed Height
Nominal Open
Pressure &
Height
Coil Bind
Height
Inside
Outside
34694
.800
1.460
Titanium
155# @ 1.800
352# @ 1.280
1.080
34695
.800
1.460
Steel
175# @ 1.700
352# @ 1.180
1.080
www.prestoncycle.com
1-39
Valve Springs
AV&V Valve Spring Kits 1999-04 for 5/16” Valve Stems (not 7mm stems)
Premium springs are manufactured without compromise from an ultra clean, high silicon and vanadium kobe alloy wire; the
best alloy available on the market for high lift and endurance applications. The chrome moly 4140 steel retainers are the strongest most durable retainers offered. High grade titanium retainers add strength and reduce weight allowing the spring pressure
to operate more efficiently. This lets your motor accelerate quicker and produce more power. Springs feature a small O.D. of
1.460” so very little or no grinding is required to the inside of the rocker cover.
AV&V Selection Chart for 1999-04 with 5/16” Valve Stems
PCP
Recommended
Lift
Retainer
Type
Application
Seat Pressure &
Initial Height
Nominal Open Pressure and Height
Coil Bind
Height
34027
.600”
Steel
Twin Cam
155# @1.885”
405# @ 1.260”
1.080
34028
.600”
Titanium
Twin Cam
155# @1.885”
405# @ 1.260”
1.080
34032
.650”
Steel
Twin Cam
185# @ 1.860”
460# @ 1.160”
1.080
34033
.650”
Titanium
Twin Cam
185# @ 1.860”
460# @ 1.160”
1.080
AV&V High Performance Beehive Spring Kit for 5/16” Valve Stems
Manufactured from ultra clean high silicon kobe alloy wire then micro shot peened and nitrided. Features CNC machined extreme duty 9
deg. locks and ultralite chromoly forged retainers.
Small End
Large End
PCP
Lift
Application
Seat Pressure &
Initial Height
Nominal Open Pressure and Height
Coil Bind
Height
I.D.
O.D.
I.D.
O.D.
34065
.600”
TC
165# @ 1.860”
384# @ 1.250”
1.200”
.650”
1.085”
1.000”
1.445”
34066
.650”
TC
178# @ 1.880”
385# @ 1.200”
1.150”
.740”
1.185”
1.055”
1.500”
AV&V High Performance Beehive Spring Kit for 7mm Valve Stems on 2005-on
Fits both single and triple groove valves. Manufactured from ultra clean high silicon kobe alloy wire then micro shot peened and nitrided.
Features CNC machined extreme duty 9 deg. locks and ultralite chromoly forged retainers.
PCP
1-40
Lift
Application
Seat Pressure &
Initial Height
Nominal Open Pressure and Height
Coil Bind
Height
Small End
I.D.
O.D.
Large End
I.D.
O.D.
34067
.600”
TC
165# @ 1.860”
384# @ 1.250”
1.200”
.650”
1.085”
1.000”
1.445”
34068
.650”
TC
178# @ 1.860”
385# @ 1.200”
1.150”
.740”
1.185”
1.055”
1.500”
www.prestoncycle.com
Twin Cam
Sifton Roller Rocker Arm Set
Features drop forged construction with hardened steel roller.
Fitted with bushings at shaft area. 4 Piece rocker set. Fits Evo
and Twin Cam 88. Order shafts separately.
PCPApplication
32338
Arm Set
30300
Rocker shaft (17611-83) (each)
S&S Standard Forged and Roller Rocker Arms
Forged steel for maximum strength. Roller tip reduces side
thrusting on valve stem in high lift applications and .750”
bushings provide 50% more load bearing area than stock.
Recommended for cams of .585” lift or more. Fits evolution
BT, XL and all TC engines.
PCPItem
Ratio
9004065 Roller arm set 1.625:1
9004098 Roller arm set 1.725:1
9004119 Standard forged 8620 steel arm set
*Adjustable pushrods must be used w/roller arms to obtain
proper valve clearance
Jims Compression Release Valves
These release valves make starting your engine effortless by
venting cylinder compresion with just the push of a button.
These are indispensable when used with stroker kits, high
compression engines and large displacement engines. Simply
drill and tap each cylinder head and thread in the self-sealing
release valves.
31283 Fits all BT and XL (10mm)
Jims Roller Rocker Arms
Kibblewhite Rocker Arm Bushings
•Constructed of SAE660 bearing bronze bar stock. Sold in pack of 8.
PCP
32233
Application
1986-11
Precision, American made rocker roller arms are investment
cast from purified, aircraft quality, 4340 chrome moly steel.
Both stock and aftermarket rocker arms were analysed to determine a baseline for the design: 660 bronze bushings were
retained and a bearing grade steel roller tip was integrated
into the design. Rocker arms feature a segmented parabolic
pushrod cup that reduces friction, wear, and improves roller
tip oiling. Stock ratio of 1.625 will easily accomodate a .700”
lift cam (at the valves). Replaces 17360-83 and 17375-83.
Set of 4.
31251 BT 1984-on, XL 1986-on
OD
0.6795”
www.prestoncycle.com
1-41
Twin Cam
Headbolt Covers for TC and Evo
Chrome plated headbolt covers to hide dull 12 point headbolts on all late 1985-on FL, FX, XL. Simple installation with
set screw. Set of 4.
72024 Custom hex dome style
72232 Smooth style
72262 Pike style
Valve Cover Screw Cover Set TC88 1999-on
Screw covers are sold in packs of 4 and are grooved to match
head bolt covers. Fits TC88 1999-on.
44045 43868-99
73591
73592
Twin Cam Stock Style Heads
For BT 1999-04 in silver or black finish.
PCP OEM
DescriptionFinish
65215 16716-99 Front head Silver
65217 16722-99 Front head Black
65218 16724-99 Rear head Black
Chrome Oil Line Fitting Set
Will screw into TC-88 engine case to allow use of 3/8” braided
steel lines or 1/8” NPT thread for oil tanks and elbows. Built-in
compression fitting so no need for clamps. Reusable 3 piece
set.
PCPApplication
59055 3/4” NPT TC-88
73591 1/8” NPT
73592 1/4” NPT TC-88
Headbolt Kits For Twin Cam- 8 Pack
Polished and chrome plated 12 point dome top headbolts.
72012 BT 1992-on, XL 1993-on (16480-92, 16478-85A)
1-42
www.prestoncycle.com
59055
Twin Cam
Headbolt Covers for Evo and Twin Cam
Chrome hex dome headbolt covers hide 12 point headbolts
on all late 1985-on FL, FX, XL. Installs with set screw.
72024
S&S Style Chrome Rocker Box Set TC
Fits TC-88 models for 2 heads.
59556 Rocker box set
25405 Gasket set
TC Chrome Screw Set
Includes o-ring seals to mount upper rocker box cover on twin
cam models.
24087
Radii Twin Cam Top Rocker Box Set
Fits 1999-on TC-88 models.
21792
Chrome Billet TC Rocker Box Kit
Fits 1999-on TC models and will accept high lift cams.
45918 For 2 heads (17572-99)
S&S Twin Cam Rocker Gasket Sets
904097
904073
904111
Stock rocker covers
S&S billet style rocker covers
S&S die cast style
45916
Twin Cam 88 Chrome Engine Parts
Scorpion Head Bolt Covers for TC-88
Classy chrome covers are easy to install and are held in place
with set screws. For added convenience spark plugs can be
removed without removing covers.
PCPApplication
45264
TC-88 1999-2007
Fits Dyna, FLT 1999-on and Softail 2000-on.
PCPDescription
64806 Chrome upper rocker cover (17572-99) (each)
45916 Chrome upper rocker covers (pair)
www.prestoncycle.com
1-43
Twin Cam & Multi-Fit
Chrome Polished Allen Motor Show Bike Kits
Complete motor kit includes everything needed to
mount the following: rocker box, primary cover, lifter
base, transmission covers, oil pump, air cleaner, cam
cover, point cover, timing plug, motor mounts (early XL
motor mounts include spacers). Sportster kits also include fasteners for sprocket cover, rear master cylinder
and generator. Twin Cam 88 kits also include fasteners
for motor case and oil hose cover. Button head allens
and flat head allens are used where necessary.
7951 Dyna Glide 2006-on
7950 Dyna Glide 1999-05
7949 Dyna Glide 1993-98
7948 Dyna Glide 1991-92
7954 Softail 2007-on
7947 Softail 2000-06
7946 Softail 1992-99
7945 Softail 1989-91
7944 Softail 1987-88
7943 Evo 4 speed 1984-86
7956 FLT 2009-on
7953 FLT 2007-08
7942 TC 88 FLT 1999-06
7941 FLT, FXR 1992-98
7940 FLT, FXR 1987-91
7939 Evo 5 speed 1985-86
7955 Sportster 2004-on
7934 Sportster 1994-03
7933 Sportster 1991-93
7932 Sportster 1986-90
9942
7934
9954
9950
Colony Twin Cam Kits
All kits are polished allens except where noted by (*), which are button
heads.
PCPDescription
9776* Handlebar lever mount and master cylinder cover screws BT 96-07
9932 Intake manifold to cylinder head mounting kit BT and XL 1995-on
9942 Lifter base screw kit TC 88, Dyna, FLT 1999-on, Softail 2000-on
9956 Motor case mounting kit TC 88, Dyna, FLT 1999-on, Softail 2000-on
9939 Oil adaptor screw kit TC 88 and FLT 1999-on
9950 Oil hose cover mounting kit TC 88, Dyna, FLT 1999-on
9954* Point cover screws TC 88, Dyna, FLT 1999-on, Softail 2000-on
9959 Primary cover screw kit TC 88, FLT 1999-06
24470 Timing cover screw kit TC 88, Dyna, FLT 1999-on, Softail 2000-on
72046 Voltage regulator mounting kit Softail 2000-on
72116 Lower front motor mount all Softail 2000-on
Rocker Cover Screw Kit
Chrome plated 12 point screw, washers,
and gaskets mount rocker covers on 1985on FL,FX and 1986-on XL.
72280
1-44
www.prestoncycle.com
9932
72046
9939
Twin Cam & Multi-Fit
Colony Lower Motor Mount Kit
Complete kit for 2000-on Softail models features heat treated
and plated bolts, locknuts and heavy duty washers.
PCPFinish
72116 Polished allen bolts
72117 Chrome cap bolts
72118 Cadmium cap bolts
Acorn TC Motor & Transmission Kits
Chrome Snap Caps Bolt Cap Cover Kits
These bolt cover kits make any bike look great and are also
great for custom builders. Beatifully designed and chromed,
these caps easily install over the raw OE bolt heads on
engine, transmission, primary and more. Each kit includes
individually marked pieces that make identification and installation a breeze.
Model
Year
2009-on
Touring
FL
Dyna
Softail
PCP
Kit Qty.
21900
111
2007-08
21901
75
2009-on
21902
126
1999-06
21904
83
2006-on
21905
76
1999-05
21906
86
Twin Cam
21907
156
2007-on
21908
81
2000-06
21909
87
2009-on
21910
125
FLSTSB
2009-on
21912
175
TC-88
Engine
21913
79
2004-on
21914
77
1984-03
21915
74
2004-on Engine
21916
63
XL
Chrome complete acorn style motor and transmission kits.
Complete Kits
7925 All Dyna 1999-on
7929 All FLT 1999-06
Individual Kits-Acorn
9957 Air cleaner all BT 1983-on
9945 Cam cover all 1999-on
9941 Lifter base all Dyna, FLT 1999-on, FXST 00-on
9955 Motor case all TC 1999-on
9938 Oil filter adapter kit all Dyna, FLT 1999-on
9949 Oil hose cover all Dyna, FLT 1999-on
9936 Motor mounting kit, front all Dyna 1991-on
9953 Point cover all 1999-on
8917 Primary cover Dyna 1989-05, FXST 1989-06
9958 Primary cover all FLT 1999-06
9943 Rocker box all 1999-on
9861 Transmission dipstick, custom all BT 87-on
9934 Trans to motor all 1999-06
9785 Trans shifter cover all Dyna 1991-on
9951 Trans shifter cover all FLT, Softail 1998-06
Colony Chrome Motor
Mount Bolt Covers
Chrome plated covers add
a smooth finished look
when easily installed with a
set screw. Sold in sets of 2.
72119 Softail 2000-on
www.prestoncycle.com
1-45
EVO
All cases warranted direct by manufacturer only
Timing Plugs
Acorn style plug fits all Harley Big Twin and Sportster timing
plug holes and oil tanks with 5/18-18 drain holes.
1690
Acorn style plug with an oversize thread and one tap for rethreading the stripped out timing hole.
1758 Plug and tap
1759 Plug ONLY
S&S Engine Cases (For 8 1/2 Flywheels only)
1984-1991 Evo type for 1984-99 chassis with cast aluminum primary chain cover (requires aluminum oil pump
OEM#26193-73 or S&S oil pump PC #316260)
NaturalBlack Description
310000310052Standard Bore
310001310053Big Bore 3-5/8”
310024
-
Big Bore 4”
1992-99 Evo type for 1984-99 chassis with cast aluminum
primary chain cover (requires OEM#26050-92 oil pump or
Revolution pump PC #29802)
NaturalBlack Description
310005310055Standard Bore
310077
310078
Big Bore 3-5/8”
310047
-
Big Bore 4”
-
310075
Big Bore 3-5/8” w/o sensor (for small diam. wheels)
Cap style plug fits all models for Harley Big Twin and Sportster timing plug holes and oil tanks with 5/18-18 drain holes.
2896 With 5/8 - 18” drain hole
5258 BT 1981-on 1/2-20 thread
New functional and custom design plug fits all models Harley
Big Twin and Sportster timing plug holes and oil tanks with
5/18-18 drain hole.
3591 Chrome
5282 Cad
5283 Black oxide
Clear Timing Plugs
Available in standard or long version.
Sold each
PCPType
626
Standard (96295-65TA)
73653 Long
73654 Hex
All S&S Evo style alternator style crankcases for stock
diameter flywheels manufactured after Oct 1, 2004 are
machined for a crank position sensor. This allows the
use of a stock EFI crank position sensor or an S&S crank
position sensor for S&S Variable Fuel Injection (VFI) systems, or S&S Intelligent Spark Technology (IST) ignition
systems. If no position sensor is used, the hole is covered
with a small plate supplied with each set of cases. Crank
position sensors must be used with flywheels with timing
notches machined into the rim of the drive side flywheel
Big Twin Motor
Mount Shims
Fit on front and rear
1936-99.
PCPThickness
13514 .036 (5 pack)
13515 .048 (5 pack)
1-46
Colony Allen Timing Plug all HD 1970-on
5/8-18 Thread. Sold each and replaces 720.
9402 Chrome
9403 Cad
www.prestoncycle.com
Big Twin EVO
FLT-FXR Motor Mount Components
PCPDescription
40021 Front mount, black (16207-79B)
40022 As above chromed (16207-79B)
40019 Stabilizer link, chrome upper or lower FLT 79-08, FXR 82-94; upper on Dyna 91-94 (16219-79C)
40020 Cad upper stabilizer Dyna 1995-on (16258-95B)
21000 Front bracket 1980-06 BT Touring (4715979A)
Motor Sprocket Nuts
PCP
12568
12611
12569
12612
Application (each)
XL 1970-88 (40387-70)
XL 1989-92 (7652)
BT 1970-90 (40392-70)
BT 1991-06 (40392-91)
Chrome Front Motor Mount Assembly
Chrome Front Motor Mount Cover
Fits 1980-06 FXR-FLT models and includes bracket, link iso
mount and hardware.
59207
Cover your front case with this attractive, chrome accessory
that hides any casting imperfections.
45145 FXST 1984-on
45146 FXR 1984-94
Chrome Billet Crankcase Breather
Big Twin Case Chrome Trim
This trim fits between the cylinders on 1985-99 EVO by
mounting to center case stud with the acorn nut included.
45066
Includes 1/8” NPT fittings.
77106
www.prestoncycle.com
1-47
Motor Case Hardware
Chrome Upper and Lower Motor Mount Kit
Complete stock motor mount kit features heat treated, plated
bolts, locknuts and heavy duty washers.
9854 Softail 1984-99
Complete Colony Motor Case Kits
Kits contain all the necessary hardware to bolt together the
Harley motor cases. Each kit is packaged for the specific application.
Big Twin 1979-95
PCP
Style
5188 Acorn chrome
1804 Stock chrome
5189 Stock cad
Evo Big Twin 1996-99
9882 Acorn chrome
9883 Flanged nut style chrome
9884 Flanged nut style zinc
Lower Motor Mount
Lower motor mount features heat treated, plated bolts, locknuts and heavy duty washers. Fits 1988-06 FLT, FLHT, FXR,
FXRS with rubber mounted motors.
9859 Chrome
Big Twin Engine Stand
Perfect for Harley Engine
repair. This bench stand works
on all Big Twin engine cases
1936-99.
283196815-46
9002
9000
Chrome Colony Kits
Dash mounting kit 1986-94 FXR (except 88-on FXRS)
Head bolt covers (4 pieces)
Primary cover 1985-99 5 Speed (except 1989-on FXST)
Primary cover 1989-06 FXST
Rocker cover BT 1985-on, XL 1986-on (8 Screws, 3 washers)
Transmission shifter cover 1988-97 FX FL Evo
Transmission shifter cover 1980-86 BT 4 speed
Transmission shifter cover 1980-87 BT 5 speed FXST
Transmission side cover 1980-86 BT 5 speed FXST
Transmission side cover 1987-06 FX, FL, FXST
1-48
Gold
Acorn
Acorn
Allen (Knurled) Caps
90149016 (Button)9015
90019000
9002
89148916
8915
89178919
8918
8931
89218907
8922
8905
89108906
8911
8908
8909 8913
www.prestoncycle.com
Crankcase BT Evo
PCP
1 10112
2 10612
4 15500
5 13540
6 15050
15051
15052
15053
15054
15055
15056
7 16228
8 11007
9 11039
10 11043
11 14016
79067
12 40021
13 40019
14 10509
N/A
15 10816
16 11800
17 11810
15871
OEM Description
358
Dowel pin (2)
720
Timing hole plug
9028
Bearing assembly
9120 to
Shim assortment
9134
16 sizes .0895-.120
9220A
R/S Rollers STD (28)
9221A “ “ .0002
9222A “ “ .0004
9223A “ “ .0006
9224A “ “ .0008
9225A “ “ .001
9225A+2 “ “ .002
10080
Clamp oil line
11007
R/S Retaining ring
11160
L/S Retaining ring
11177A
R/S Retaining ring
12026B
Oil seal
12026B
James oil seal
16207-79B Engine mount, front
16219-79A Stabalizer link/lwr
16302-81 Fitting, crankcase
16304-87 Fitting, crankcase
16837-85A Stud, cylinder
24002-70Spacer
24032-70 “ .060
Year
85-*
84-*
70-02
70-*
70-*
58-86
58-86
58-86
58-86
58-86
58-86
58-86
84-86
58-86
L83-*
87-*
70-98
70-98
80-*
79-08
81-*
87-*
L85-99
70-*
70-*
U/M
10 Pk
Each
Each
Set
Set
Set
Set
Set
Set
Set
Set
10 Pk
10 Pk
5 Pk
10 Pk
5 Pk
5 Pk
Each
Each
Each
Each
Each
Each
Each
PCP OEM Description
Year
11811 24033-70 “ .090
70-*
11812 24034-70 “ .120
70-*
11813
24035-70 “ .150
70-*
11814 24036-70 “ .180
70-*
11815 24037-70 “ .210
70-*
11848
Spacers .060-.210
70-*
181009 24599-58A R/S Bushing STD
58-*
31070
“
Jims bushing STD
58-*
1171 24600-58A R/S Bushing .002
58-*
1010 24601-58A R/S Bushing .005
58-*
31071
“
Jims +.010 bush
58-*
1011 24601-58A R/S Bushing .010
58-*
20 15920 24650-58 R/S bearing STD
58-86
15860 24626-87 “
“ white/grey 87-*
15861 24628-87 “ “ green 87-*
15862 24641-87 “ “ red
87-*
15863 24643-87 “ “ blue
87-*
21 11816 24692-58 R/S Washer .070 (2) 58-86
317003
S&S as above
317004
As above .050
22 11850 35850-84 L/S Spacer .010
70-*
11851 35851-84 “ “ .020
70-*
11852 35852-84 “ “ .032
70-*
23 10732 43578-35 R/S Bearing cage (2) 58-86
24 30050 45095-85 Retainer connector
85-*
25 10545 45830-48 Plug case oil line
L84-*
26 21000 47159-79A Engine mount chr.
80-06
27 10575 63533-41 Fitting oil hose
L84-*
U/M
Each
Each
Each
Each
Each
6-pc
Each
Each
Each
Each
Each
Each
Kit
Set
Set
Set
Set
Pair
5 Pk
5 Pk
5 Pk
5 Pk
5 Pk
Each
5 Pk
5 Pk
Each
5 Pk
15860
BT Pinion Gear Set Side Bearing Set 1987-99
Includes cages. Available in a 1 piece or 2 piece style.
1Piece 2 Piece OEM
Colour
1587115861 24628-87A Green STD
1587215860 24626-87A White/Grey +.0001
1587315863 24643-87A Blue +.0002
1587415862 24641-87A Red +.0003
15864
24642-87A Black +.0005
15865
24644-87A Yellow +.0010
15866
24645-87A Brown +.0015
15867
24646-87A Silver +.0020
18007
-
23928-87
Pinion shaft race, 87-99 1.372”
Pinion Bearing Sets
Bearing set for right side that includes rollers and cages.
15411 BT 74” & 80” 1958-86
www.prestoncycle.com
1-49
Flywheels BT Evo
PCPOEM
Description
1 11520 6506
Bronze washer (2)
11523
+005 O/S (.065)
2 10301 11218
Key c/pin & pinion
3 10302 11219
T-Key, pinion
4 11051 22589-83 Lock ring (4)
5 32352 22719-85 Piston pin (2)
6 31200 23909-80 Sprocket shaft, Jims
7 31140 23961-80A Crank pin Jims 3 hole
32549
Eastern, as above
31156
Jims as above 3 hole
32548 23975-87 USA crank pin .002
8 12536 23969-83 Nut, crank pin (2)
9 10306 23985-54 Key, pinion (2-’89)
10 1889 24006-83 Pinion shaft
31247
Jims as above
32502 24006-87 “ “ STD
31248
Jims as above
Year U/M
70-99 Pair
70-99 Pair
L81-99 10
88-99 10
84-99 10
86-99 Each
L81-E85 Each
L81-99 Each
L81-99 Each
L81-99 Each
L83-99 Each
L83-99 Pair
54-99 10
L83-86 Each
L81-86 Each
87-88 Each
87-88 Each
PCP OEM Description
11 12539 24016-80 Nut, gear shaft
12 12541 24017-80 Nut/sprocket shaft
13 34004 24281-83 Rod assembly
14 32050 24334-36 Bush. piston .STD
32051 24334-36 Bush. piston .002
18509 24335-36 “ “ .010
18644 24316-99 Pin bushing
15 977 24345-36 Rod race, narrow (2)
24356-36 “ “ wide (1)
31049
Jims as above
17 10723 24366-71 Cages, narrow (2)
24367-71 “ wide (1)
18 15850 24385-40B Rollers/cages STD
15800 24346-87A Bearings and cages
19 10310 26348-15 Key, pinion
20 12569 40392-70 Nut, sprocket
12612 40392-91 As above, thru-hole
21 58012 23906-90A Flywheel assembly
58013 23906-93B As above Complete 80” Flywheel Assembly-(USA Made)
4 1/4” stroke flywheel assembly for stock Big Twins 1990-on.
Shipped complete and assembled as pictured but trueness
must be checked before assembly of motor.
58012 1990-92 (23906-90A)
58013 1993-99 Evo (23906-93B)
58016 VT as above
1-50
www.prestoncycle.com
58016
Year
U/M
L81-89 Each
L81-E85 Each
L83-99 Each
36-98 Pair
36-98 Pair
36-98 Pair
99-on Pair
36-99 Set
73-86
Set
41-86
87-99
36-99
70-90
91-06
90-92
93-99
Set
Set
10 Pk
Each
Each
Each
Each
BT Evo Cam Case
Big Twin Gear Case 1984-99
PCP OEM Description
1 10155 275
Dowel pin (2)
2 10112 358
Dowel pin (2)
3 15607 9058
Cam bearing
5 10306 23985-54 Key, pinion
10302 11219
T-Key, pinion
6 31309 24240-78 Pinion gear, orange
31310 24041-78 Pinion gear, white
31311
24042-78 Pinion gear, yellow
31312
24043-78 Pinion gear, red
31313
24044-78 Pinion gear, blue
31314
24045-78 Pinion gear, green
31315
24046-78 Pinion gear, black
29089 24043-93 Pinion gear, red
29091 24045-93 Pinion gear, green
29092 24046-93 Pinion gear, black
7 12544 24023-54 Nut, pinion
12542 24022-90 As above
31015
Jims, as above
12613 7916A
As above
8 1193 24703-54 Spacer, pinion
11534 24704-90 As above
93011925310-82A Breath valve, plastic
30168 25313-77A Breather valve, steel
10 11560 25320-82 Plastic washer .130
11561 25321-82 “ “ .135
11562 25322-82 “ “ .140
11563 25323-82 “ “ .145
11564 25325-82 “ “ .150
Year
57-on
41-on
58-99
54-89
90-99
77-89
77-89
77-89
77-89
77-89
77-89
77-89
93-99
93-99
93-99
54-89
90-92
U/M
10 Pk
10 Pk
Each
10 Pk
10Pk
Each
Each
Each
Each
Each
Each
Each
Each
Each
Each
Each
Each
93-99
54-89
90-92
L77-99
L77-99
L82-*
L82-*
L82-*
L82-*
L82-*
Each
Each
Each
Each
Each
5 Pk
5 Pk
5 Pk
5 Pk
5 Pk
PCP OEM Description
Year
U/M
11565
25326-82 “ “ .155 L82-* 5 Pk
11566 25327-82 “ “ .160 L82-* 5 Pk
11567 25328-82 “ “ .165 L82-* 5 Pk
11568 --
Ass’t of various sizes L82-* 8 Pk
11 11529 25550-57 Lock washer, cam
58-*
5 Pk
12 13522 25550-36 Cam washer .050
36-*
5 Pk
13523 25551-36 “ “ .055 36-* 5 Pk
13524
25552-36 “ “ .060 36-* 5 Pk
13525 25553-36 “ “ .065 36-* 5 Pk
13526 25554-36 “ “ .070 36-* 5 Pk
13521 25555-84 “ “ .045 36-* 5 Pk
13528 25556-79 “ “ .080 36-* 5 Pk
13529 25557-79 “ “ .085 36-* 5 Pk
13530 25558-79 “ “ .090 36-* 5 Pk
13531 25559-79 “ “ .095 36-* 5 Pk
13532 -- “ “ .100 36-* 5 Pk
13520 --
Ass’t (.050-.095)
10Pk
13 18513 25581-70 Cam bush cover STD 70-*
Each
18514 -- “ “ “ .005 70-* Each
18629
“
“
“ .010 70-*Each
14 18518 25582-73 Pinion bush cover
L73-92 Each
18639
As above +.005
Each
18601
25582-93 Pinion bushing STD 93-99 Each
18602 As above +.005
Each
15 2268 26345-73 Pump drive gear 24T 73-99 Each
16 31351 26349-84 Pinion pump gear
L85-89 Each
30125 26354-90 As above
90-92 Each
30133 26354-93 As above
93-99 Each
Crankcase Oil Screen
16270 24983-00 (each)
www.prestoncycle.com
1-51
BT Nose Cone 1970-99
15400
Cam Bushing Kit
Big Twin Cam Cover (Points Ignition) 1970-78
PCP OEM Description
Year
U/M
1 10127 615
Pin breaker plate
70-78 10 Pk
2 10183 620
Pin breaker weight 70-78 10 Pk
3 10115 623
Pin
70-7810 Pk
4 2556 3570
Timer bolt
70-99 Each
5 45469 25268-84A Chrome gear cover 73-92 Each
45471 25256-93A Chrome as above 93-99 Each
67928025225-70B Gasket, James .031 70-92 10 Pk
79282 25225-70-X Gasket, black .031 70-92 5 Pk
w/silicone
79283 25225-93 Gasket, paper, cam 93-99 10Pk
79285 25225-93-X Gasket, black 93-99 5 Pk
w/silicone
7 2555 32522-70 Advance weights
70-78 Pair
8 30052 32542-70A Cam, breaker
70-78 Each
9 79565 32591-70 Gasket 2 hole
70-79 10 Pk
25110 32591-80 Gaskets 4 hole
80-99 10 Pk
10 10844 32601-78 Stud timer cover
L72-E82 Pair
10846 32606-82 “ “ “
L82-99 Pair
10896 As above
Oversize 12/24 threads
Pair
11 12165 32605-70 Advance springs
70-78 10 Pk
12 3333 32618-70 Points plate, bare
70-78 Each
13 N/A 32629-70 Shaft & plate
70-E78 Each
14 724 32661-70Points
70-7810 Pk
16 727 32726-30ACondensers
48-78 10 Pk
18 14074 83162-51 Oil seal cover
70-99 5 Pk
Ignition Wire Hold-Downs (5 packs)
Die-cast aluminum, chrome-plated ignition wire hold-downs
neatly secure the ignition wire to the cam cover. They accept
a socket head screw (not included).
27530 Small wire hold-down for point-type ignitions
27531 Large wire hold-down for electronic-type ignitions.
1-52
BT kits include cam and gear shaft bushings/bearings with
lock pins and thrust plate. XL kits include all cam and gear
bushings/bearings, lock pins and shims. USA made.
BT Kits XL Kits
15400 1993-99
15406
1991-96
15401 1973-92
15407
1986-90
Ignition rotor cup, gold 1983-99 (32402-83)
29100
(requires OEM bolt #26113, not included)
29139
Ignition rotor cup Evo fuel injected models 1995-* (32456-95)
Jims BT Cam Cover Bushings
PCP
31359
31360
31361
Description (Each)
BT 1970-99 STD
BT 1970-99 .005 (25581-70)
BT 1970-99 .9875 (25581-80AB)
Jims Pinion Bushing
PCPApplication
31367 BT 1993-99 (25582-93)
31368 BT 1993-99 .005
www.prestoncycle.com
BT Cam Case 1970-99
Advance Unit Assembly 1970-99
Replacement unit assembly for those worn out parts on the
stock 1970-E78 models as a complete kit to convert late 1978
models electronic ignitions back to point style ignitions.
681
Complete Kit
4396 Points wire only
Rivera Engineering’s advance unit features: shaft and plate
of stainless steel, advance weights that are heat treated and
coated with high-tech, low friction polymers; stainless steel
pins, and stainless steel washers. Replaces 32505-78A for
1970-99 mechanical advance applications.
76009 Advance unit
Rotor & Weight Assembly
Replaces frozen or worn hubs &
weights on 1970-99 XL-FX-FL.
Includes shaft, weights, springs and
cam assembled.
30054 32505-78A
Needle Bearing Advance Unit 1970-99
Advance unit features redesigned weights which house
full complement miniature needle bearings for perfect balance and centrifugal actuation. Unit includes base, cam,
weights with installed needle bearings; and stock springs.
Fits BT 1970-99, XL 1971-on and can be used with all ignitions, points, electronic, single, or dual types which utilize
an advance unit. Springs available separately and allow full
advance at RPMS listed.
28123 Complete unit
Timing Cover Screw
Kit All Big Twins
1970-92
1748 Acorn Style
5353 Allen Style
24038 Stainless Steel
S.S. Competition Advance Mechanism-USA
Tuneable Advance Unit 1970-99
Unit features a stainless base, heat treated weights, cam
bolt and colour coded springs that allows full advance at
1400, 2000, and 2600 RPM, depending on which springs are
selected. Can be used with all ignitions, points, single or dual
fire types which utilize an advance unit. Springs also available
separately.
28127 Tuneable unit
Advance Weight Spring 1970-99
PCPDescription
12165 Black, stock OEM style springs, 1400 RPM (10 pack)
13001 Heavy advance weight springs for slightly modified stock low compression or mild Stroker. Helps solve minor idle problems, 2000RPM (pair)
13002 Severe duty weight springs for high compression and heavily modified engines. Also useful for
engines experiencing pinging or erratic idling, 2600 RPM (pair)
www.prestoncycle.com
1-53
BT Cam Cover
Polished Billet Cam Cover, Big Twins 1993-99
Made by Jims from 7075-T651 aluminum with a tensile
strength of almost triple the stock cast unit. This cam cover is
right to the center line of the cam bushing and pinion bushing.
This is a two piece construction, inner cover houses the cam
bearing and seal. O-Rings are used with both covers to offer
superior sealing. Two mounting bolts are all that show at final
assembly.
31296 1993-99 (25254-93A)
BT Nose Cone Gear Covers
These covers fit Big Twin models 1973-on with end oiling
models. Covers come with bushings installed and either
chrome or polished finish. Includes seal.
PCPDescription
45469 1973-92 Chrome (25268-84A)
45470 1973-92 Polished
45471 1993-99 Evo Chrome
67402 1993-99 Evo Chrome, U.S.A. (25256-93A)
67403 1993-99 Evo Polished, U.S.A.
Polished Chrome Timing Cover Screw Kit
8761
FX 1970-92, EVO
Jims BT Chrome Cam Cover Kit
31269 BT 1993-99
Colony Cam Cover Screws
Chrome Acorn Style
PCPApplication
1748 BT 1970-92
9820 BT 1993-99 (not TC 88)
9945 TC 88, Dyna, FLT 1999-on
Chrome Cap Style
PCPApplication
8466 BT 1970-92
Chrome Allen Style
PCPApplication
5353 Shovel and Evo 1970-92
9819 BT 1993-99 (not TC)
1-54
www.prestoncycle.com
BT Cam Cover
S&S Crankcase Gear Cover Kits 1973-99
Covers are machined from 356-T6 aluminum castings and
feature a distinctively different from stock appearance. Kits
include an inner gear cover and a decorative bolt-on outer
cover. Will accept either points or an electronic ignition system.
FlangelessYear
310203
1973-92
310204
1993-99
S&S Polished Billet Gear Cover Kits 1973-92
The 1973-92 style polished gear covers fit stock 1973-92
engines and are now standard equipment on S&S polished
evolution style engines. The 1973-92 gear covers have the required breather passage for engines that have the crankcase
breather routed directly out of the crankcase. Chromed billet
aluminum covers fit 1993-99 and are perfect for stock engines
or any engines built with 1992-99 stock flywheel assemblies
as they are machined to accomodate the larger stock pinion
gear nut. The 1993-99 gear covers do not have the breather
passage required for “case breathing” engines and should
only be used with engines that have the crankcase breather
routed through the cylinder heads. Kits include gear cover,
ignition cover, gaskets and mounting hardware.
PCPDescription
310335 Complete kit 1973-92
310336 Complete kit 1993-99
310332 Ignition cover only
S&S Billet Gear Cover for Evo Style S&S
Engines with Crank Position Sensor Ignition
This gear cover is intended for engines that make use of a
notched flywheel and crank position sensor for ignition timing.
It is not machined to accept an ignition system. Shorter than
standard type gear covers, it is not subject to cam seal leaks,
since the cam is entirely contained within the cover. Solid one
piece polished cover is machined from billet aluminum and
features the S&S logo. Direct replacement for gear covers
supplied on S&S engines equipped with IST ignition or Variable Fuel injection.
310313
Polished Billet Flame Points Cover
Radical flamed points cover features skull motiff to fit BT
1970-99.
59707
www.prestoncycle.com
1-55
BT Cam Cover
Chrome Cam Covers BT 70-92
Stamped steel covers completely enclose your cam and point
covers like a second skin. Each cover includes all of the necessary mounting hardware.
45049 Plain version
Chrome Skull Design Cover
PCP TypeApplication
45482 Points 1970-98 BT
45483 Points 1971-on XL
59171 Derby 1970-98 BT
59172 Derby 1999-09 BT
Chrome Nose Cone Cover
This cover slips over your existing nose cone and mounts up
with the existing hardware.
45332 BT 1970-92
Chrome Nose Cone Cover BT 1993-99
This steel cover slips over your existing cam cover with hardware included.
45051
Ignition Cover Gasket
Use on all 1970-99 Twins.
Preston James Type (10 pack)
-
79565 2-Hole (32591-70)
2511079309 4-Hole (32591-80)
25224
-
2 Hole rubber
Point Cover Allen Screws
Chrome Maltese Cross Covers
PCP
59184
59185
59186
59187
1-56
CoverType
Derby 3 Hole BT
Derby 5 Hole BT
Points 2 Hole
Points 5 Hole
Fits BT & XL 1970-On
PCP Style LengthYear
2864 Acorn .400
70-99
5256 Cap .400
70-99
8492 Gold Cap
70-99
5356 B/Head.500 70-78
5357 B/Head.600 79-99
www.prestoncycle.com
Point Covers Multi-Fit
3409
5486
45112
44072
45212
44136
44133
45113
45165
44108
44131
3102
44137
44132
44065
3409
59707
44064 45483
5486
Two Hole Multi-Fit Point Covers
PCP
Design
Finish
Fitment
Holes
3409
Domed
Smooth chrome
1970-99 (32584-88T)
Any
5486
6 Bolt Domed Racer
Chrome with 6 non-functional buttonhead allen screws
1970-99 Evo
45112
LTR-Eagle Spirit
Chrome
1970-99 BT
Horizontal
Horizontal
45212
LTR-Eagle Spirit
Chrome with gold overlay
1970-99 BT
59001
Spinner
Chrome with multi-holes
1970-99 BT
44065
Mesh skull
Chrome with black mesh skull
1970-99 BT, 2004-on XL
Horizontal
45482
Raised skull
Chrome with black eyes
1970-98 BT
Horizontal
44072
Raised skull
Black with raised chrome skull
1984-99 BT, 2004-on XL
Horizontal
44136
Chained Skull
Chrome
1970-99 BT, 2004-on XL
Horizontal
44133
Modern skull
Chrome with raised black skull
1970-99 BT
Horizontal
44131
Pirate skull
Black with chrome skull and band
1970-99 BT
Horizontal
59707
Flaming Skull
Polished billet
1970-on BT
Horizontal
45165
Flames
Chrome
1970-98 BT
Horizontal
59186
Maltese Cross
Chrome
1970-98 BT
Horizontal
45113
LTR-Eagle Spirit
Chrome
1970-on XL
Vertical
44067
Bird
Chrome
1971-on XL
Vertical
3102
Ribbed
Chrome
1957-on
Vertical
44064
Mesh skull
Chrome with black mesh skull
1971-05 XL
Vertical
45483
Raised skull
Chrome with black eyes
1971-on XL
Veritcal
44108
Raised skull
Black with raised chrome skull
1986-03 XL
Vertical
44132
Pirate skull
Black with chrome skull and band
1971-on XL
Vertical
44137
Chained skull
Chrome
1971-93 XL
Vertical
www.prestoncycle.com
1-57
BT Oil Pump
S&S Standard Billet Oil Pump Kits
Note that some kits include a breather gear and shim kit with
an oil pump assembly. Primary chain oiling is automatic and
precise eliminating potential damage to the primary chain or
dry clutch because of too little or too much oil.
S&S BT Billet Oil Pump Gasket Kits
S&S Oil Pump Gasket Kit
316271
1936-91 with paper gaskets
316273
1992-99 with paper gaskets
Oil pump only kit includes supply gears, return gears, drive
shaft, drive shaft keys, drive shaft snap rings, check ball,
check ball spring, pressure valve, pressure valve spring,
cover screws with o-rings, miscellaneous hose fittings, plugs,
screws, paper gaskets, and mounting hardware with both
early style 1/4”-24 and late style 1/4”-20 mounting bolts.
Caution:
Incorrect gear fit causes binding and premature wear or
damage to gears which may also result in damage to other
engine components.
Oil Pump Assembly Only
316203 1973-91 with universal cover
316206 1992-99 with standard cover
316205 1992-99 with universal cover
S&S BT Oil Pump Kit Replacement Parts
Oil Pump Assembly with Drive Gear, Breather Gear,
Shims
316295 1978-91 with universal cover
316296 1992-99 with standard cover
Pump Body 316051
1992-99
Pump Cover 1992-99
316062
Standard
Oil Pump w/Custom Cover, Without Gears
316207 1992-99
Oil Pump w/Custom Cover and Gears
316247 1992-99
Billet Oil Pump Cover
Polished cover features late oil pressure relief to return excess oil to feed side of pump. Use with all aluminum oil pump
bodies. No provision for front or rear chain oiling.
31163 BT 1992-99
S&S Oil Pump Master Rebuild
Fits all S&S pumps 1936-99
316275
Kit
1-58
www.prestoncycle.com
BT Oil Pump
S&S High Volume/Pressure Billet Oil Pump
This pump was designed for the sidewinder plus long blocks.
These engines feature piston cooling jets that spray oil on the
underside of the pistons.The high volume/high pressure pump
is recommended for any engine with 1992-99 style crankcases. These pumps feature a new tooth profile which provides
increased supply and return oil volume. Supply gears are 9%
wider than stock and return gears are 28% wider than stock
to help prevent oil carry over. Even with wider gears the pump
remains the same width as a stock pump. These pumps are
available with or without breather gears and with a universal or standard cover. The standard cover has the feed and
return lines in the 92-99 stock location. The universal cover
is a custom cover that provides a number of feed and return
options for the custom builder.
Sifton Oil Pump BT 1992-99
Features geo-rotor compact cad/cam design, modular billet
aluminum construction, superior scavenging, increased feed
flow rate which eliminates wet-sumping in crankcase.
21695
Oil Pump Only (no breather gears) 1992-99
316208 With universal cover
316209 With standard cover
Oil Pump with Breather Gears 1992-99
316302 With universal cover
316298 With standard cover
Oil Pump Only (no breather gears) 1984-91
316214 With universal cover
Oil pump Kit with Gears 1984-91
316307 With universal cover
S&S HVHP Oil Pump Rebuild Gasket Kit
High Volume High Pressure oil pump gasket kit includes key
and retaining ring.
PCPApplication
316308 1984-91 BT
316299 1992-99 BT
Topline Oil Pump Assembly 1973-91
Complete late model pump includes all internal components
for Big Twins. These are a replacement for 1973-99. Can be
used on earlier models with case modification.
29800 1973-91 (26190-73)
Oil Pump
Valve Kits
16612
16613
PCPApplication
16612 Relief valve/
bypass
(spring, plug, valve)
16613 Check valve 1981-99
(ball, spring, cap)
Oil Pump Top Cover
Chrome plate fits the gap between engine and transmission
on FLT, FLHT, FLHRC, FLHS, FLHR, FLTR 1993-98 models
with ribbed or classic oil pump cover. Does not fit 1999-on
Twin Cam engines. Replaces 66090-96A.
64201
www.prestoncycle.com
1-59
BT Oil Pump
31165
31168
Jims Polished Billet Aluminum Oil Pump
CNC machined Flow Pro 1 pump will provide an increase
in oil return (scavenge) volume over stock pumps. Provides
increased horsepower by decreasing drag on the flywheels
and other rotating parts. Choice of end cover for custom or
stock oil line connection. Feed and return gears are matched
to each body. Available for late 1973-present Evo BT 74” to
140” motors. 1981-on bolts on with no modification. 19731980 cases will require a simple drilling for oil drain hole by
using JIMS #2286 drilling tool. No provisions for front or rear
chain oiling.
31165 BT 1973-91 w/top feed and return
31167 BT 1973-91 w/bottom feed and return
31168 BT 1992-99 w/bottom feed and return
31166 BT 1992-99 w/top feed and return
31159 Oil pump body only BT 1973-91
31160 Oil pump body only BT 1992-99
BT Oil Pump Assembly
Features improved oil pump pressure regulation that will
ensure correct oiling to all areas of BT engines 1973-on.
Kit includes all necessary fittings, snap rings, keys, gaskets
and mounting bolts. Can be used with either chain drive or
belt drive models. Note: Available with breather which also
includes drive gear gasket, breather gear and washers.
Pump Pump W/
Only BreatherYear
Finish
3006359564 1973-91Polish
3006459565 1973-91Chrome
3006559566 1992-99Polish
3006659567 1992-99Chrome
Colony Allen Plug Set
Fits BT 1981-99 chrome plated polished allen.
72074 3 Pack
Oil Pump Rebuild Kit
Includes all gaskets, seals, clips, keys, check ball for 1981-on
FX-FL Big Twin.
Oil Pump Rebuild Kits
JamesFits
Material
79819 1981-91Paper
79818 1981-91Mylar
79820 1992-99Paper
79837 1992-99 Metal gaskets
BT Oil Pump Fitting Kit
PCPYears Type
73598 1984-91Stock
73599 1970-91Custom
Pro Just Relief Cap
Without oiler for 1981-99 models. This cap allows the precise
adjustmemt of oil pressure by turning the adjusting screw
clockwise to increase oil pressure. Comes with a “super
pump” spring provided in our spring kit #13260> Works in
stock BT 81-99 oil pumps as well as S&S and other pumps.
30401
1-60
www.prestoncycle.com
Oil Pump BT 1984-99
PCP
1 10102
3 15574
4 11003
5 14505
7 13132
9 14032
12 13133
14 30111
15 79141
79142
16 79143
79145
17 30100
18 30101
OEM Description
600
Pin valve stop
8873
Ball chk valve 3/8”
11002
Retaining ring
11105
O-Ring chk valve (2)
26207-83 Relief valve spring
26227-58 Oil seal
26262-80 Check valve spring
26263-80 Plug check/relief
26273-80B Gasket body paper
26273-92 Gasket body paper 26276-80A Gasket cover paper
26276-92 Gasket cover paper
26315-68A Drive gear
26317-68A Idler gear
Year
83-99
52-on
68-99
79-99
83-99
68-99
81-99
81-99
L80-91
92-99
L80-91
92-99
68-99
68-99
U/M
10 Pk
10 Pk
10 Pk
10 Pk
10 Pk
5 Pk
10 Pk
Each
10 Pk
10 Pk
10 Pk
10 Pk
Each
Each
19
20
21
22
23
24
25
30
31
32
33
36
37
PCPOEM
Description
30102 26326-62A Drive idler gear
30104 26327-68 Idler gear shaft
30106 26328-74 Drive gear
10520 26338-68 Elbow fitting (2)
1408 26346-70 Drive shaft
10310 26348-15 Key, drive shaft (3)
11060 26348-36 Snap ring, shaft
30113 26400-82 Valve oil pump
5672 26561-84 Oil switch 5 speed
10545 45830-48 Oil plug (2)
10575 63533-41 Fitting oil line (2)
29800 26190-73 Oil pump assembly
N/A
Year
L62-99
68-99
41-99
68-92
68-99
68-99
36-99
82-99
84-99
48-99
41-99
73-91
U/M
Ea
Ea
Ea
5 pk
Ea
10 pk
10 pk
Ea
Ea
5 pk
5 pk
Ea
Chrome Oil Pump Covers for Big Twins
These chrome covers were designed to bolt-on to stock
aluminum oil pumps, offering improved styling and ease of
installation. They fit all Big Twins from 1968 to present and do
a great job of enhancing the right side of the motorcycle.
45031 Fits all Big Twin models (except Dyna GlideTM) without a fitting for the primary chain oiler 1968‑91 with
belt drive
45030 Fits all Big Twin models with a fitting for the primary
chain oiler (except Dyna GlideTM) 1968-91
45027 Fits all Big Twins 1992-99
45030
www.prestoncycle.com
45027
1-61
BT Oil Pump
Colony Oil Pump Plugs
Oil Screen Plug
FL, FX 1981-99 with o-ring (26263-80).
9644 Chrome
9645 Cad
Oil Pump Check and Relief Valves
FL, FX 1981-99 with o-ring (26263-80).
9634 Chrome
9635 Cad
Tappet Oil Screen, Oil Pump
Check Valve, Relief Valve Plug
Fits 1981-99 Big Twins.
Replaces OEM P/N 26263-80
3583 Chrome
Accel Oil Pressure Switch
USA-made oil pressure switches with
precision calibrated heavy duty contacts, plastic insulator and a bright finish. Fits Evo BT 1984‑99 (not models w/electric oil pressure gauge).
5672 26561-84
Tappet Oil Screens (each)
3378
24981-701970-99
Oil Screen Springs for Tappet Oil
13127
24982-70 1970-99 (5 pk)
Tappet Oil Screen, Oil Pump Check
Valve, Relief Valve Plug Set
Complete set of 3 chrome plugs fit
1981-98 Big Twins.
Replaces OEM P/N 26263-80
3576
Oil Pump Fitting
Chrome 90 degree fitting for all 1968-92 Big
Twins. Will also work on
many custom applications.(26338-68)
10520 5 Pack
BT Tappet Screen
Oil Plug
72073 1981-99
Colony BT Oil Tappet Screen/
Spring 1970-99
Fits all 1970-99 BT and replaces OEM
24981-70 oil screen and OEM 24982-70
spring.
72146
Chrome Tight Spot Oil Pump
Fitting Set
Features a 5/16” allen socket for easy
installation or removal. Includes 1/8”
NPT nipples.
16329
1-62
www.prestoncycle.com
“Super-Pump” Spring Kit,
1972-91 Big Twin
Finally, an answer to low oil pump pressure on 1972-91 Big Twin oil pumps!
This kit consists of three separate
colour-coded springs made from spring
steel. Each spring applies more pressure on the relief valve plunger, thus
controlling the output pressure of the
oil pump. The average output pressure,
(taken at road speed, 55-60 mph) would
be as follows: Blue spring 20psi, Yellow
spring 24psi, Red spring 28psi. At idle
the pressure drops no lower than 10psi.
The customer can select the spring
desired depending on weight of oil
used, driving habits, climate, etc... Plus,
springs are easily changed if one of
these variables change. These springs
work well on S&S and Rev-Tech pumps
as well.
13260
Jims BT Oil Pump Shaft Kit
31193 1968-99
BT Pinion Gear
Topline Pinion Pump Gear BT 1990-92
30125 26354-90
BT EVO Pinion Gears 1993-99
BT Pinion Spacer 1990-92
PCPColour
29089 Red (24043-93) (Preston)
29091 Green (24045-93)
29092 Black (24046-93)
11534 Each (24704-90)
31350
31351
Jims BT Oil Pump Drive Gears
BT 6 Tooth Pinion Drive Gear 1993-99
Precision machined and heat treated.
31350 Jims 24T 1973-91 oil pump shaft gear (26345-73)
2268 Preston, as above
31351 Jims L1985-89 pinion/oil pump drive gear (26349-84)
30153 Preston, as above
30133 26354-93
Colony Oil Pump Mounting Kit
Chrome polished allen bolts for Evo 1978-91.
8747
Stock OEM Style
5334
9787
BT 1978-91 Chrome
BT 1978-91 Zinc
5337
Chrome Allen
5337
9762
9774
BT 1978-91
FXST 92-99, Dyna, FLT 92-98
XL 1991-03
Chrome Acorn Style
1821
9763
Big Twin 1978-91
FXST 92-99, Dyna, FLT 92-98
www.prestoncycle.com
1-63
BT Breather/Pinion
Jims Big Twin Pinion Gear 1977-89 (24040-78)
PCPOEM
31309 24040-78
31310 24041-78
31311 24042-78
31312 24043-78
31313 24044-78
31314 24045-78
31315 24046-78
Size
1.4751-1.4756 1.4745-1.4751
1.4737-1.4745
1.4729-1.4737
1.4721-1.4729
1.4715-1.4721
1.4710-1.4715 Colour
ORANGE
WHITE
YELLOW
RED
BLUE
GREEN
BLACK
Jims Breather Gear With Elongated Oil Hole
This steel breather gear has an elongated rear hole to aid
in better crankcase flywheel cavity vaccuum. Designed to
replace the stock plastic breather valve gear.
31696 Fits late 1977-99 BT single cam only
Jims Breather Valve Gear
Steel breather valve for Big Twins. Made from aerospace
quality steel and CNC machined to highest standards for
precise control of exhausting crank case pressure. Designed
to replace stock plastic valve gear. Also available in +.030”
oversize to correct a damaged breather valve hole.
PCPDescription
31254 BT L77-99 standard
31255 BT L77-99 +.030” oversize
Sifton Air Ramp
Fits S&S/Sifton breather gear on 1936-99 models to remove
more air and oil from crankcase. Requires removal of oil
screen for installation.
34021
S&S Big Twin Pinion Gears and Related Parts
Engine Year/ Pinion Shaft
1977-89
Largest
Average
Smallest
Orange
White
Yellow
Red
Blue
Green
Black
334141
334142
334143
334144
334145
334146
334147
Related Items
24T Pump drive gear 193989
Pinion drive gear 1954-89
N/A
334232**
Gear spacer 1954-89
334289
Gear nut 1954-89
334244
Keys 1954-89 (10 pk)
10306
1-64
Note: Gear sizes are listed from largest (orange) to smallest (black). This
colour coding sequence is identical to stock H-D coding. When in doubt use a
gear from the middle to the small side of the range. A combination of smaller
gears should provide adequate gear under most circumstances. Both excessive and zero gear lash combinations cause engine noise, but no clearance or
zero gear lash causes binding and premature wear.
** Requires OEM 26345-73 oil pump drive shaft drive gear
www.prestoncycle.com
BT Breather
77101
4634
S&S BT Steel Breather Gear and Valve Gear
Crankcase Breather Assembly
Mount your breather in plain view instead of hiding it behind
your engine or transmission case. Comes complete with a
one-piece filter molded to a light weight chrome end cap, a
chrome zinc die-cast mounting base with 5/16” inlet and a
hose clamp. The hose clamp holds the filter to the base when
the vent hose is installed.
77101 Complete assembly
4634 Replacement Filter ONLY (no chrome)
2” diameter x 1/2” height
Machined breather valve and gear by S&S. Designed to
replace the stock steel or plastic OEM parts. Offered in stock
duration only in stock O.D. and +.030 oversize (for use in
worn or damaged breather holes). Washers are also available
separately in sets
PCPDescription
334241
Gear only, Std size L1977-99 (25313-77A/B)
334242
Gear only, +.030 L1977-99
334250* Valve gear kit, Std L1977-99 (25313-77A/B)
334260* Valve gear kit, +.030 L1977-99
334249
Washer set, 8pc, all years
*NOTE: Requires the use of 1977-on style and diameter
cam and pinion gears; and steel spacing shims.
ET Breather Kit BT 1978-85
S&S Breather Reed Valve for BT Evo Engines
30127
The functional part of the S&S breather reed valve consists
of three steel reeds that are normally in the closed position.
When the pistons travel downward in the cylinders, the air
in the crankcase is compressed and pressure in the crankcase below the pistons increases. This pressure causes the
reeds to open, allowing the air and oil mist in the crankcase
to escape into the cam chest. When the pistons travel back
upward in the cylinders, a vacuum is created in the crankcase that causes the reeds to close which prevents air from
entering the crankcase. This results in greatly improved oil
scavenging and the maintainance of a slight vacuum in the
crankcase.
Installs easily, just insert into the breather valve cavity.
Available in standard diameter to replace stock rotary style
breather valve and also +.030” diameter for engines with
heavily damaged breather bores.
PCPSize
312096 Standard (1993-99)
312100 +.030” Oversize (1993-99)
Preston’s Breather Valve Gear
Steel breather valve for Big Twins. Made from quality steel
and CNC machined to highest standards for precise control
of exhausting crank case pressure. Designed to replace stock
plastic valve gear.
PCPDescription
30168 BT L77-99 standard
www.prestoncycle.com
1-65
S&S BT EVO
S&S Replacement Flywheels BT EFI 1995-98
4-1/4” and 4-5/8’ stroke EFI flywheels for 1995-98 fuel injected BT are intended for use in stock replacement and fuel
injected performance applications. The drive side flywheel
features a pressed in sprocket shaft for improved rigidity.
Standard tapered S&S crankpin and pinion shaft are used
for ease of service. Notches on the drive side flywheel are
compatible with stock EFI system as well as the new S&S
Variable Fuel Injection (VFI) system.
PCPApplication
322145 4-1/4” EFI style flywheels (23941-95)
322146 4-5/8” EFI style flywheels
S&S Big Twin Sprocket Shaft Assembly
332004 1970-on S&S SE or SL flywheels only
S&S 1981-89 Big Twin Pinion Shaft Assembly
332027
332028
Fits std size S&S BL, SL, or stock flywheels. Replaces 24006-80, 24006-83, 24006-87
As above, +.001 oversize. 1.251” (24020-87)
77102
S&S 96” EVO Sidewinder Kit for BT EVO
Designed for BT EVO 1984-99. These flywheels are assembled with heavy duty rods, balanced and trued. Includes
series 1900 forged pistons, complete with rings, pins, retainers, gasket set and instructions. Note: Stock cases will require
a crankcase boring operation to accept these cylinders. For
1990-99 models you must order #334148 pinion shaft conversion kit. Kits feature 96” with 3-5/8” bore, 4-5/8” stroke and a
9.75:1 compression ratio.
PCPFinish
917660 Natural
917661 Black
1-66
Chrome Crankcase Breathers
PCPApplication
77102 3/8”
77103 1/8” NPT
www.prestoncycle.com
S&S EVO
S&S 89” Stroker Kit for BT Evo 1984-99
For 1984-99 engines with stock, S&S or performance heads.
4-5/8” Stroke, 3” bore kit offers 9.5:1 CR and requires no
special machine work other than crankcase clearance operation and normal piston fitting. S&S 1065554 series stroker
forged pistons must be purchased separately.
S & S Crankshaft Assemblies
8-½” OD S&S flywheel kits are engineered from the strongest components for maximum potential engine life. Each kit is
assembled with heavy duty rods, both shafts and is trued and
ready to install. Can be used with stock heads and balanced
to stock HD 80” pistons.
4-1/4” Stroke (Stock) BT Evo 89”
322239 BT Evo 1984-99
334148 Pinion shaft conversion kit required for 1990-99
PCP
322230
322146
89” Stroker Kits
1984-99 Carbureted engines
1995-98 EFI engines
S&S 1065554 Series Pistons
Pinion Shaft Conversion Package 1984-89
Kit includes 1977-89 pinion gear, 1954-89 pinion shaft oil
pump drive gear, 1954-89 pinion shaft gear spacer, and 195489 pinion shaft gear nut. Average size (red)- fits S&S shaft
33-2024, 33-2029, or 1977-89 shaft.
334148
3-½” Bore forged stroker piston kits fit 89” BT V2 stock heads
and offers 9.5:1 compression. Kits include a set of pistons,
rings, wristpins and clips. Recommended piston fitment:
Close: 0.008”-0.0013”
Loose: 0.0020”-0.0025”
PCPSize
1065554 STD
1065555 +.010
1065556 +.020
1065793 +.030
*Note if ordering replacement pistons for an older 89” kit, flywheel rebalancing
will be required.
S&S Shaft Assembly
PCPApplication
332336 Pinion shaft +.001 XL
1986-on
BT 3 Hole Crank Pin Kit
Includes 3 hole crank pin, rod races, standard rod rollers and
retainers.
PCPApplication
34022 L1981-86
www.prestoncycle.com
1-67
Rod Components Multi-Fit
Wrist Pin Bushings
Sold in pairs. Bronze OEM type
PCP Jims OEM Size
1864431356 24316-99 STD
18645
.002
1850731354 24334-36 STD
32050
K/W
STD
32051
KW
.002
1850831355 N/A
.005
18509 24335-36 .010
1850431352 24331-36 STD
18598 N/A
.002
1850531353
N/A
.005
18599 24332-36 .010
Crank Pins
Fits
TC 1999-on
TC 1999-on
BT 1936-98
BT 1936-98
BT 1936-98
BT 1936-98
BT 1936-98
XL 1957-on
XL 1957-on
XL 1957-on
XL 1957-on
Crank Pins available from U.S.A. makers, Eastern, Jims,
OEM and Taiwan. American pins are made of 8620
steel, with .062 heat treat penetration.
Note: All crank pins have one or three oil holes.
PCPOEM
Model
Holes/Brand
31140 23961-80A BT L1981-99
3 Jims
31142 23961-80A “ new oil location 3 Jims AF
31151 (less end play)
3 Jims
31149 A Cut Above
3 Jims
31156 23974-87
BT Evo 87-99
3 Jims +.001
32548 23975-87
“
1 USA +.002
3412
23960-80A XL L1981-up
3 Preston
31133 23960-80A XL L1981-up
1 Jims
31134 23960-80A XL L1981-up
3 Jims
Connecting Rod
Roller Sets
Each set supplies enough rollers for
alloy rod cages only.
Big Twins 1973-on
PCPSize
15100 -0002 US
1040 STD
1041 0002 OS
1042 0004 OS
1043 0006 OS
1044 0008 OS
1045 001 OS
4113
002 OS
3548 003 OS
342602
S & S Crank Pin
Includes 2 nuts and key.
PCPApplication
342102 1981-86 BT 1.249 OD and all S&S 1981-on (23961-80A)
342103 1987-on BT 1.250 OD (23974-87)
342602 XL 1981-on and S&S 1.249 OD (23960-80A)
342603 As above, 1.250 OD (23948-87)
S&S Crankpin with Nuts BT 1981-99
PCPSize
342102 (1.249)
342103 (1.250)
342105 (1.251)
342106 (1.252)
Note: Order by crank pin .O.D as required
1-68
Rod Bearing Sets with Cages
Set of cages fitted with standard size Torrington rollers for
connecting rods. Cage material noted!
PCP
OEM Cage
Model
Year
15850 24385-40B Alloy
74 & 80
41-86
15800 24346-87ASteel BT
87-99
www.prestoncycle.com
Rods
347900
34004
34008
Preston Stock Replacement Rod Sets
Includes new rods, crank pin nuts, cages and standard rollers.
Piston pin bushings are installed and honed for stock wrist
pin.
PCPModel
34004 L1983-99 BT Evo (24281-83)
34008 1986-99 XL (24275-86A)
Always check rod roller fitting before assembly
S&S Supreme Connecting Rods
Are made even stronger than our regular heavy duty rods
and are recommended for all drag strip applications and any
street situation where the best is warranted.
PCPModel/cageYears
347214 BT EVO (steel) 1984-99 .792 pin O.D.
347900 883-1200 .792
1986-99, also for engines with (alloy)
strokes greater than stock but less than 4 3/8 (typically used in 3 5/8 bore 89” & 4” bore 100” engines) (not for stock motors)
7.113” Rod length
S&S Regular Heavy Duty Connecting Rods
Jims BT Connecting Rod Bearing Sets 41-99
Recommended for any street application.
PCPModel/cageYears
347013 BT EVO (steel) 1984-99 .792 Pin O.D. 7.440”
347800 883-1200 (alloy) 1986-99 6.926” rods .792” Pin
Torrington rod bearings and steel cages. They will retro fit to
1941. Available in standard size only. When refitting rods use
this bearing set with Jims oversize crankpins.
31169 24356-87A
S&S Alloy Rod Bearing Retainers BT 1941-99
Connecting Rod Race Sets
Replacement roller type for Harley connecting rods.
344020 1941-99 BT (24366-71, 24367-71)
Rod Races are designed for extreme pressure. Made from
52100 steel and hardened.
PCPModel
Year
Jims
1102
Sportster1954-E86t
977
Big Twin
1936-99
31049
Engine Builder Wrist Pin Bushing
•SAE660 bearing bronze construction
PCP
Application
UM
32050
Std. O.D.
Pair
32051
+0.002” O.D.
Pair
S&S BT Bearing Assembly
Steel cages and STD rollers for 1941-99 models.
344010
www.prestoncycle.com
1-69
S&S EVO Cams
S&S 1984-99 BT Evolution Cam Specification Chart
With the exception of the bolt-in 508 and 510V camshafts, S&S cams are high lift and designed to take advantage of the extra flow of ported
stock heads or S&S Super Stock heads. Due to the high lift of these cams, S&S adjustable pushrods and high performance valve springs
are recommended.
Valve Timing
Open/Close
Valve Duration
Intake
Exh.
Intake
Exh.
Bolt-in cam for less than 10:1 CR.
Excellent low/mid range torque for
touring.
11/25
50/5
217
235
335124
96” Bolt-in w/10:1 CR. Works well
510V with stock or ported heads. 30005000 RPM.
20/38
52/20
238
335073
520
Short duration emissions cam for
80”-96” engines. Requires high
lift springs and normal clearance
checks. 1000-4500 RPM.
0/40
50/2
335072
546
Short duration emissions cam for
111”-124” engines. Requires high
lift springs and normal clearance
checks. 1000-4000 RPM.
5/55
335076
561
Best cam for 80” to 96” engines.
9.5:1 to 10.5:1 CR. Strong midrange
power. 3000-5500 RPM.
335057
563
PCP
3300093
335109
335058
335080
335108
Intake
Exh.
Spring
Spacing
Required
.508”
.141”
.110”
No
Hydraulic
252
510
187
178
No
Hydraulic
220
232
.520”
.086”
.094”
Yes
Hydraulic
52/5
240
237
.546”
.126”
.106”
Yes
Hydraulic
32/40
50/26
252
256
.560”
.252”
.210”
Yes
Hydraulic
103”+ street/race cam for 11:1+ CR.
Strong top end, easy starting.
32/64
64/32
276
276
.560”
.250”
.220”
Yes
Solid or
Hydraulic
80”-96” engines w/ 10:1 to 10.5:1
585V CR and larger engines with 9.5:1 to
10:1 CR. 3500-6000 RPM.
20/45
60/20
245
260
.585”
.186”
.180”
Yes
Hydraulic
Cam
508
Application
Lift @ TDC
Tappet
Type
600
Excellent for large displacement
engines with 9.5:1 to 10.5:1 CR.
3500-6000 RPM.
20/55
60/20
255
260
.600”
.192”
.184”
Yes
Hydraulic
631
For all high RPM engines. Street
and racing engines with11:1 and
higher CR. Additional wear on valve
train components requires valve
spring and other normal clearancing
checks. 4500-6500 RPM.
34/61
66/29
275
275
.630”
.281”
.221”
Yes
Solid or
Hydraulic
640
Big inch engines 10.5 to 11.5:1. Or
smaller engines witih 11:1 to 12:1
CR. Requires less compression than
the 631 and provides more linear
power. 3000-6000 RPM
25/60
65/20
265
265
.640”
.222”
.192”
Yes
Hydraulic
Notes: Timing designation is function of zero lash @.053” off base circle.
Lifts at TDC are measured at the valve and are for reference only.
Overlap valve lifts must be checked on assembled motor.
Minimum valve to valve clearance of .040” is recommended.
1-70
Valve
Lift
www.prestoncycle.com
Crane EVO Cams
1984-on EV Cams
Duration .053” Gross Valve Lift Open/Close
PCP
34508
INT.
262
28/54
EXH.
272
69/23
34559
266
23/63
276
68/28
34555
260
26/54
266
65/21
INT.
.500**
.550**
.600
EXH.
Series/Grind
Type/Application
.500**
Hydraulic
Hi Roller
H306-2
(1-1002)
Performance cam with mid and upper range RPM power.
Works best with 10.5:1 compression ratio. Can be used with
stock heads. Clearancing and valve spring change required.
Excellent stroker cam. Basic RPM 3000-6000.
Cam lift at TDC: Int. .140”, Exh. .122”*
.550**
Hydraulic
Hi Roller
H310-2
(1-1003)
Performance cam designed for larger cubic inch and
increased CR’s. Street-strip type performance 88 cu. in.,
10.5:1 CR and larger. Heads must be clearanced and have
performance valve springs installed. Basic RPM depends on
the combination, approx. 3000-6500.
Cam lift at TDC: Int. .143”, Exh. .143”*
.600
Hydraulic
Hi Roller
H314-2
(1-1006)
Performance cam. Street type performance for large cubic
inch bikes with performance heads. Produces a broad
power range. Cleaning and valve spring change required for
.600” lift. Basic RPM 2800-6000.
Notes: ** Gross valve lift for Evo with 1.6 rocker arm ratio
* To convert cam lift to valve lift, multiply the cam lift figure by the rocker arm ratio: 1.6
Andrews Gauge Pins
212105 Gauge pins .105” diameter pins (pair)
212116 As above .108” diameter pins (pair)
www.prestoncycle.com
1-71
ANDREWS EVO CAMS
Evolution 80 Engine Cams 1984-99
Performance cams mean extra power for evolution engines. Hydraulic lifters are capable of 6000+RPM with stock springs and
no valve float. Aluminum (T7) or chrome-moly pushrods (both fully adjustable) are available to match any of our camshafts.
Aluminum pushrods are lighter while the chrome-moly steel pushrods are more rigid for high performance. E-Z install pushrods
can be installed without removing fuel tanks or rocker boxes.


50% Lighter than stock
More spring travel (+.050 over stock)
292215 E-Z install aluminum pushrods (set of 4)
292245 E-Z install chrome-moly steel pushrods (4)
Touring and Performance Cams
Duration
Valve Lift @
PCP# Grind Timing(*).053 .020
Lift TDC Springs
Stock (L)
01/37
218 266
.495 .091 Stock
88-91
53/-01
232 280
.495 .083
Stock (N)
02/30
208 250
.472 .070 Stock
92-on (carbs) 31/-09
202 242
.472 .049
291113 EV13 15/31
226 270
.485 .161 Stock
45/13
238 280
.495 .148
(OK with fuel injectors or carburetors)
291123 EV23 10/30
220 255
.498 .134 Stock
40/08
228 264
.498 .121
(OK with fuel injectors or carburetors)
291127 EV27 20/36
236 270
.495 .182 Stock
44/16
240 274
.495 .166
(OK with fuel injectors or carburetors)
291130 EV3 21/37
238 280
.495 .197 Stock
43/15
238 280
.495 .159
(OK with fuel injectors or carburetors)
291146 EV46 25/41
246 283
.495 .207 Stock
49/17
246 283
.495 .163
291151 EV51 28/44
252 286
.510 .233 Stock
54/22
256 290
.510 .195
291159 EV59 28/48
256 290
.560 .236 HI-LIFT
56/24
260 294
.560 .208
291172 EV72 30/54
264 298
.560 .246 HI-LIFT
60/28
268 302
.560 .230
(*) Timing
1-72
Application
Listed for reference. 1984-87 cam is 212 deg. int.,
202 deg. exh., .472” lift on both valves.
Listed for reference. ‘N’ cam is close to 84-87
specs. California “C” cam is 178 deg. duration.
Bolt-in street/touring cam for heavy bikes. Much
more low and mid-range power than either stk cam.
Mild bolt-in street/touring cam with more torque and HP for all around riding with stock comp. ratio. Similar to stock L cam but more output. Pulls from 1800-5200 RPM
Bolt-in street cam with fast open and close ramps.
Similar timing to EV3 but designed to produce a very broad torque band. Pulls 2000 to 5500 RPM.
Bolt-in street cam for light bikes (FXRS, etc.). Lots
more mid-range and upper end power. Smooth idle,
6000 RPM cam with stock head and springs.
Bolt-in performance cam with fast open and close
ramps. Longer duration than EV3 but higher static comp. pressure for wide torque band to 6000+RPM
Easy installation with longer duration for modified
street engines with hydraulic lifters. Power range from 3000-6500 RPM.
Upgraded EV57, fast ramps for modified 80” to 88”
motors. Use with Andrews springs and collars. Very broad power band; 6000 RPM. OK for hyd. lifters.
Upgraded EV7, for 92”+ street motors. Use with
Andrews springs and titanium collars. Very broad power band, 2800-6000 RPM. OK for hyd. lifters.
www.prestoncycle.com
Lifter Base
Diecast BT EVO Tappet Covers - All Years
Chrome Tappet Block Covers - Stamped Steel
They fit over stock units, maintaining the original contours.
Each cover has a hidden slot in the back which permits it
to be installed in minutes without removing your pushrods.
These covers are held in place with a small amount of silicone
adhesive which is provided. Four 12-point chrome screws
are also included to replace the four zinc-plated OEM screws
which protrude slightly through the holes in the covers. Sold
in sets.
45040 Fits all Evolution® Big Twin models from 1984-99
45042 Fits all Sportster EVO 1986-90
Chrome tappet guide block covers for BT EVO. Each cover
has a slot which allows it to be installed without removing the
pushrods. Simply lift pushrod lower covers and insert chrome
covers. Designed as a press fit, but industrial sealant (not
supplied) such as silicone is recommended.
45039 Set, as shown
5299 Chrome 12 point screws (if required) 1976-99
Chrome Lifter Block Bolt Caps for 1976-99 Big Twin
Our chrome lifter block bolt caps are finely machined from
aluminum then plated with a chrome finish. They fit all 76‑99
Big Twin models and install easily onto the stock 12‑point
mounting bolts, using a dab of clear silicone.
44001 (8 pack)
Chrome Tappet Block Cover
Includes screws and fits BT Evo 1984-on.
45267
Chrome Allen Style- 8 Pk
5315
Big Twin 1976-99
Colony Lifter Base Screw Kit
Polished allen bolts for BT 1976-99.
8726
Chrome Acorn Style
1788
2632
5503
9765
9766
Big Twin 1976-99
Late Lifter Bases to Pre-1976
Cases 1/4-24 Thread
XL 883/1100 1986-90
XL 1991-94
XL 1995-on
www.prestoncycle.com
12 Point Style- 8 Pk
5299
5300
BT 1976-99 Chrome 1/4-20
BT 1976-99 Cad 1/4-20
1-73
Lifter Base
EVO Billet Chrome 7075-T651 Tappet Blocks
JIMS tappet blocks are designed to accomodate a gross
valve lift of .655” at the valves. This is about .350” at the
tappets, leaving a clearance of .035” roller to block free play.
Will clear most small base circle cams having a lift of .600” or
more. Any cam over .550” lift needs to be checked and should
have .035” to .045” roller to block clearance. If using a cam
with a higher lift, a simple modification to the tappet block is
required. Caution: you still need to follow manufacturers guide
lines. Kit includes blocks, gaskets and chrome screws.
31264 Billet chrome tappet block kit.
Jims Evo Billet Tappet Blocks with Tappets
Made from 7075-T651 this kit features Big Axle Power Glide
tappets. Accomodates a gross valve lift of .625” at the valves,
leaving a clearance of .035” roller to block free play. If using
a cam with higher lift, a simple modification is needed. Blocks
will clear most small base circle cams having lift of .655” or
more.
These tappet blocks are machined to the centre line of the
cam and hold + .002”. Also, the bores are held perpendicular
to the mounting flange to a + .0002”. Kit includes blocks, 4 big
axle “Powerglide” tappets, gaskets and chrome screws.
PCPDescription
31263 Kit with chrome blocks for use on BT 1984-on
31262 Kit with polished blocks for use on BT 1984-on
S&S Big Twin Black Tappet Guide Set
Stock style black tappet guide set is cast from 356-T6 aluminum and is designed to be stronger, resist wear and last
longer than stock. Set includes gaskets and mounting screws.
Fits stock style and S&S Super Stock evolution cases.
335324
Jims BT Evo Tappet Block Kit
31261 With polished pushrod covers
Sifton Cam Chest Kit BT 1987-99 Evo
Includes Sifton 140 cam.
21766
140
Cam
1-74
Open
Big Twin Evo Chrome Tappet Blocks
Closed
IN
30
42
EX
55
27
Lift
.450”
TDC
Coil Bind @
.222
.480
.177
.480
Nice quality set of billet style lifter blocks, chrome plated to fit
Big Twins 1984-99.
32336
www.prestoncycle.com
Lifter Base
Evo Tappet Block Covers
Finned design coordinates with cylinders to completely cover
tappet blocks. Installs with silicone adhesive and does not
require the removal of tappet blocks.
PCPDescription
45252 Chrome cover with black fins
S&S Billet Tappet Blocks BT 1984-99
S&S tappet blocks are machined from solid aluminum billet
providing superior quality and dimensional precision in a great
looking product. This set can be used on engines with stock
style crankcases, and for engines using S&S Special Application crankcases with .250” offset cam chest.
335323 Polished tappet block set
1065428 Chrome tappet block set
30033
Sifton Lifter and Pushrod Assembly
Complete assembly includes 4 hydraulic lifter tappets, 4 hydraulic lifter units, 4 pushrods and lifter bases.
PCPApplication
30033 Big Twin 1986-99, chrome
21706 As above with solids
Big Twin Evo Tappet Blocks
S&S tappet blocks are cast from 356-T6 aluminum and
designed to be stronger, resist wear and last longer than
stock. The clean looking, burnished aluminum finish matches
S&S Super Stock crankcases and can readily be painted or
polished as desired.
335301 As shown
335309 For engines using Special Application crankcases with .250” offset cam chest
TC-88 Oil Pump
Alignment Tool
Sifton Evo Performance Cam Kit 1984-89
Includes cam E-Z install pushrods, chrome lifter bases and
roller tappets. (.495 lift)
32337
Tapered tool threads into the oil
pump and perfectly aligns the pump
to the cam plate. Use on all TC and
Evo engines.
5894
www.prestoncycle.com
1-75
Lifters
Jims Hydrosolid Tappet
This tappet performs like a hydraulic tappet from start up to
about 5500 rpm and then turns into a solid from 5600 rpm
on. When solid it adds 3-6 more useable horsepower. When
springs start to surge the tappet rollers start lofting off the
back side of the cam and will not pump up allowing your
valves to hit. Must use adjustable pushrods.
PCPApplication
31644 BT 1984-99, XL 1986-90 OD .8425”
31645 As above +.002”
Tappet Lifter BT EVO 1986-99
30150 STD Sifton
30151 .002 Sifton
30152 .005 Sifton
Jims Adjustable STD Tappet
Fits Big Twin 1984-99 and XL 1986-90. Sold each.
31128 18523-86SA
79273
79270
Sifton Hydraulic Tappet Unit Set
79274
79271
4 Tappet set features maxi-axle roller and pin design and an
unique “no-bleed” integral pump unit. Pump design features
full hydraulic action up to 5000 RPM, above that it acts like a
solid unit.
PCPSize
30140 STD
30141 .002
Cast Tappet Block Gaskets BT EVO & XL 86-90
PCP
79270
25029
79273
25028
79271
79274
1-76
OEM 18633-48C
18633-48
18634-48B
18634-48
18633-48D
18634-48C
Description
Gask., rear tappet .031
Foamet .046” R/tappet
James front tappet .031
Foamet .046” R/tappet
James rear tappet .020
James front tappet .020
Year
48-90
48-90
48-90
48-90
91-99
91-99
U/M
10 Pk
10PK
10 Pk
10PK
10 Pk
10 Pk
Tappet Roller Repair Kit BT EVO & XL 86-99
High quality tappet roller assembly and roller pin.
15624 Roller kit for 4 tappets
15623 Roller kit for one tappet (18534-86)
www.prestoncycle.com
Lifters
Solid Tappet BT Evo 1984-99 and XL 1986-90
Must use adjustable pushrods. (109 grams)
Big Axle Size (STD O.D. .8425) Jims
31619
STD
31620
.002
31621
.005
Jims Power Glide Hydraulic Evo 1984-99 and
XL 1986-90 (18523-86)
STD O.D. .8425. (149 grams)
Big Axle
31625
31626
31627
Size
STD
.002
.005
Adjustable Solid Evo Tappet with Screw Nut
BT 1984-99 and XL 1986-90.
Requires shorter pushrod available from Axtel. (126 grams)
Big Axle Size Jims
31622
STD
31623
.002
31624
.005
Jims XL and Buell 1991-on Solid Tappets
Clearanced for about .700 lift. Use with adjustable pushrods.
(123 grams)
Big Axle Size (STD O.D. .9035)
31631
STD
S&S EVO Hydraulic Tappets
Jims Billet Steel Power Glide Hydraulic Tappet
XL 1991-99 (18526-PG)
Clearanced for about .700 lift. (143 grams)
Big Axle Size
31639
STD
Tappets fit all BT V2 style and XL 1986-91 engines. Features
a larger inner bearing race to reduce bearing stresses. Redesigned plunger assembly better withstands forces associated
with heavy-duty valve springs and pushrods typical to high
performance applications. Precisely controls oil delivery to top
end, insuring rapid lifter pump up and reducing the possibility
of oil starvation to the bottom end.
335352 4 Pack without HL2T kit (18523-86A)
335353 4 pack with HL2T kit
Note: S&S Tappets with HL2T require the use of adjustable pushrods. Because of close tolerances tappets in #335353 may require
slightly longer bleed-down time than conventional tappets. At temperatures of 65°F and above, however, bleed-down should take 20
minutes or less using 20W5 engine oil.
www.prestoncycle.com
1-77
Cylinders/Pistons
VT BT Evo 83” Bolt-On Cylinder Kit
Includes 10:1 compression Wiseco forged piston kit (Fitted),
No case boring required.
PCPFinish
34826 Black
34827 Silver
35548 Piston set
35549 Ring set
VT 103” TC-96 Cylinder Kits for 2007-2010
Includes 9:1 or 10:1 Wiseco forged piston kit fitted to cylinder.
BlackSilverCR
34800348019:1
348023480310:1
25407
-
Gasket kit
The Sifton cylinders have a very thick, large O.D., “cast in”
liner which has been proven to be an important factor in
maintaining thermal stability which is the ability to retain cylinder bore dimension through repeated heat cycles.
Evolution Cylinder Oil Passage Drain Tubes
For stock bore size cylinders only. Each kit includes tap, hex
wrench, and 2 drain tubes.
30123 Kit
30124 Replacement tubes only (pr)
Sifton Racers Evo Stud Kit
Includes 8 inserts, drill tap and 8 chrome moly studs. Allows
more torque to be applied which helps cure oil leaks and
protects case threads during disassembly.
PCPDescription
59448 Complete shop kit
60104 8 Studs only
10052 8 Inserts only
Cylinder Stud Removal Tool
BT Evo Cylinder 1984-99 (each)
These front & rear cylinders do not include pistons. 3.487” i.d.
PCPFinish
34812 Stock (16510-83)
34809 Black (16512-86A)
1-78
For Evo and Twin Cam.
72660
www.prestoncycle.com
Cylinders/Pistons
VT Cylinder and Piston Kits L1985-99 1340cc
3-5/8” Big Bore Cylinder for 4-1/4” Stroke Evo
Forged pistons with Hastings rings are pre-fit in heavy wall
cylinders. Cylinder sets 3-5/8” and larger require case
boring.
PCP Ratio PistonFinish
34828 9.25:1 WisecoSilver
34829 9.25:1 WisecoBlack
348349.25:1Sifton Black
348359.25:1Sifton Silver
34830 Silver cylinder 5.540 gasket-to-gasket (each)
34831 Black cylinder (each)
Honed and pre-fitted with stock compression cast pistons and
Hastings rings. They are ready to run and will require break-in
as suggested in the appropriate shop manual. Sold in pairs
for stock stroke only. Order gasket set separately
PCP FinishCompression
34820 Black8.5:1
34821 Silver8.5:1
S&S Manual Compression Release Kit
S&S manual compression releases are activated by a cable
similar to a choke control. Before starting, the handle is
pulled, which opens the compression releases. When the
engine fires, the increased cylinder pressure automatically
closes the compression releases. The S&S manual compression releases can be used with any style rocker covers.
904925 Manual
VT 93.4” Cylinder Kits
Includes Wiseco 9.5:1 compression piston set with rings prefit to new 3.75” cylinders. Cases must be bored to accept
this kit.
PCPFinish
34823 Silver
34824 Black
S&S Two-Piece Socket Kit
Kibblewhite Cylinder Studs
S&S Cable Knob
•Machined from fine grain, heat treated,
aircraft quality steel
•Centerless ground OD
•Black oxide finish
PCP
Application
UM
32196
All Evolutions
8 pack
Special S&S two piece compression release socket kit allows inframe installation of S&S compression releases and protects wiring
from damage during installation.
530045
Billet accessory knob
for manual compression
release.
508701
www.prestoncycle.com
1-79
S&S Cylinders/Pistons
917002
S&S 3-5/8” Bore V2 Big Twin Cylinders and
92-1900 and 92-1930 Series Pistons For Stock Style Evo Heads
The 92-1900 and 92-1930 series pistons are forged, flat top, 3-5/8” big bore pistons used in S&S Sidewinder kits and engine
kits for V2 engines with stock style cylinder heads. The 92-1900 series is used for 4-1/2” stroke BT engines with stock diameter (8-1/2”) flywheels, and for 4-3/4” stroke BT engines with 8-1/4” diameter flywheels. The 92-1930 series is a modified version of 92-1900 which is clearanced for 4-5/8” stroke BT engines with stock 8-1/2” diameter flywheels. Replacement cylinders
and cylinder kits with pistons are available for the Sidewinder kits and engine that S&S offers. Cylinders are available in natural
and black powdercoat finish. Stock crankcases must be machined to accommodate the larger spigot diameter.
Displacement
Stroke
88”
93”
96”
4-1/4”
4-1/2”
4-5/8”
Forged Pistons
Bore
3-5/8”
3-5/8”
3-5/8”
Cylinder Length
5.375”
5.500”
5.565”
9:1
9.5:1
9.75:1
Cylinders only- natural
917000
917100
917200
Cylinders only- black
917500
917600
917700
Cylinders w/pistons- natural
917002
917102
917202
Replacement Piston Kits
Forged
Forged
Forged
Rings
Moly
Faced
Standard Piston
921900
921900
921930
941210
+.010
921901
921901
921931
941211
+.020
921902
921902
921932
941212
+.030
921903
921903
921933
941213
+.040
921904
921904
921934
941214
Piston Deck Height
1.200”
1.200”
1.200”
Compression (stock heads)
Recommended Piston Fit:
Close: .0015” - .0020”
Loose: .0030” - .0040”
Wristpin
Hardened
Keeper
Clips
(4 pk)
949256
949254
Notes: Cylinder with piston kits include cylinders, piston kit, head gaskets, base gaskets and exhaust gaskets. All piston
kits include
rings, wristpins and clips.
S&S Chrome Head
Bolt Covers
Dress up your engine with
these magnetic chrome
head bolt covers. Easy
installation, no tools or
adhesives required. A
powerful magnet holds
cover in place, yet allows
easy removal. Chrome
plated steel looks great on
any engine especially on
polished engines. For S&S
head bolts only.
500333 Set of 4
1-80
BT Evo Oil Fix Kit
Kit includes 2 cylinder base gaskets and 2 oil jet controls
which regulate the oil coming from the head through the
barrel and into the case, preventing the oil from touching the
base gasket which may cause leaking.
25637 Kit
www.prestoncycle.com
S&S Cylinders/Pistons
S&S Head Bolt Kits for V2 BT Engines (8 pack)
PCP
933010
Stroke
Cyl.
Length
S&S 89”,
HD 80”
4-1/4”
5.550”
S&S 93” V2
4-1/4”
5.500”
Engine
Cylinder Head
Type
1988-90,
1991-on HD
S&S 3-1/2” Bore BT Evo Style Cylinders and
106-5554 Series Pistons for 89”
The 106-5554 series pistons are forged 3-1/2” bore stroker pistons designed for use with 4-5/8” stroke flywheels to
convert stock 80” V2 Big Twin engines to 89”. These pistons
are normally used with stock HD cylinders, however cylinder
and piston kits are available for engines that require new
cylinders.
Displacement
S&S Service Components
Cylinder Studs
60106
BT 1985-99 (16837-85C) (8 pack)
Stroke
4-5/8”
Bore
3-1/2”
Cylinder
Length
5.550”
Compression
Stock Heads
9.25:1
Compression
89cc Heads
9.8:1
Compression
79cc Heads
10.4:1
Keepers are available in different sizes (thickness) to control
wrist end play that varies with bore size. Button style keepers
must be fully supported by wrist pin hole. Sold as 4 pack.
3 5/8” Bore
PCP
Range (Series 1800, 1830)
949258
STD to +.030
949259
+.040 to +.070
3 7/16” and 3 1/2” Bore (Series 2800-2900)
PCPRange
949251
STD to +.040
949252
+.050 to +.090
3 3/16” Bore (Series 3700)
PCPRange
949351
STD to +.070 (Pair)
Forged Flat Top
Pistons
Recommended
Piston Fit:
Close: .0020“ - .0025“
Loose: .0030” - .0035“
Natural
Black
Cylinders Only
917210
917710
Cylinders
w/Pistons
917211
917711
Forged
Moly
Rings
Replacement
Piston Kits
S&S Teflon Button Style Keepers
89”
Standard
1065554 942206
+.010
1065555 942207
+.020
1065556 942208
+.030
1065793 942209
Wristpin
Hardened
Keeper
Clip
949256
949254
Notes: Cylinder with piston kits include cylinders, piston kit, head gaskets,
base gaskets and exhaust gaskets. All piston kits include rings, wristpins and
clips.
For cylinder only kits, pistons must be measured & cylinders boredéhoned
accordingly
S&S Head Bolt Washers
PCPThickness
507096 .100” (5 pack)
507095 .250” (10 pack)
“C” Style Piston Pin Clips (most other series)
949254
4 Pack
www.prestoncycle.com
1-81
Pistons
T/L BT Stock Style Evo Pistons
PCP
OEM
Description (Sold for 1 cylinder)
65240 21940-83 Piston and rings STD
65244 21944-83 As above +.030”
S&S 3½” Forged Flat Top Stroker Piston Kits
Forged 89” stroker pistons for stock or S&S performance
replacement heads. Fits Evo BT engines. Piston kits include
a set of pistons, rings, wristpins and clips.
Kits
Size
Moly Rings
1065554
STD
942206
1065555
+.010”
942207
1065556
+.020”
942208
11051
Keeper clips
Recommended piston fit:
Close: 0.0020”-0.0025” Loose: 0.0030”-0.0035”
May require rebalancing if replacing old 92-2040 series pistons.
1340 Evo Piston Kits (Imported)
Molly coated, cast pistons help reduce friction and wear, while
allowing for adequate break-in. Set includes pistons, Hastings
moly ring set, wrist pins and locks. Fits 1984-99 1340 Evolution models with stock stroke and 8.5:1 CR.
PCPCompression
35606 Standard
35607 .005
35608 .010
35609 .020
S&S Evo 4” Forged Piston Kit for 113” Motor
PCPSize
921410 STD
921411 +.010
921412 +.020
S&S 3-5/8” Evolution Ring Sets
Ring sets are sold for a complete engine. Top ring .062, 2nd
ring .062 and oil ring .158.
PCPSize
941210 STD
941211 +.010”
941212 +.020”
941213 +.030”
941214+.040”
S&S 3½” Cast Stock 80” Piston Kits
Replacement pistons for stock or S&S performance replacement heads. Fits Evo BT engines. Piston kits include a set of
pistons, rings, wristpins and clips. No balancing required.
Kits
Size
Moly Rings
9200015
STD
942216
9200026
+.010”
942217
9200027
+.020”
942218
Recommended piston fit:
Close: 0.008”-0.0013”
1-82
S&S 4” Evolution Ring Sets
Ring sets are sold for a complete engine.
PCPSize
941300 STD
941301 +.010”
941302 +.020”
941303 +.030”
Loose: 0.0020”-0.0025”
www.prestoncycle.com
Pistons
BT EVO 1984-99 80” (3.500 OD) 8:1
1200 XL Evo 1988-03
Piston kits include 2 STD compression pistons with pins,
clips and a moly ring set. Hastings rings are sold in sets for 2
pistons and are available in cast or moly styles with
1/16” (.062) compression rings.
Piston Hastings Rings
SizeKit Cast Moly
STD 3587035100 35260
.005 3587135101 35261
.010 3587235102 35262
.020 3587335103 35263
.030 3587435104 35264
Piston kits include 2 STD compression pistons with pins, clips
and a moly ring set. Pistons sold each include a pin and clips
only. Hastings rings are sold in sets for 2 pistons and are
available in cast or moly styles with 1/16” (.062) compression
rings.
PistonPistonHastings Rings
SizeKit EachCast Moly
STD 35600358903510035260
.005 35601358913510135261
.010 35602358923510235262
.020 35603358933510335263
.030 35604358943510435264
.040 35605358953510535265
Sportster Evolution 883
Wiseco 10.5:1 Piston Kit for XL 2004-13
Kits include 3.812” stroke, forged pistons, Hastings ring set,
retainer clips and chrome piston pins. Hastings rings have a
.062” top and 2nd ring and a .158” oil ring. Ring sets are for 2
cylinders. Armour Glide skirt coated pistons.
PCP
Bore
Wiseco
Ring Set
35923
STD (3.498”)
K1746
35260
35924
.010 (3.508”)
K1747
35262
35925
.020 (3.518”)
K1748
35263
35930
Cometic top end gasket kit (W6378)
Valve pocket dimensions are measured from deck height:
Intake/Exhaust Pocket: Depth: -167”
Diameter: 2.100”
Piston kits include 2 STD compression pistons with pins, clips
and a moly ring set. Pistons sold each include a pin and clips
only. Hastings moly rings are sold in sets for 2 pistons with
1/16” (.062 ) compression rings.
PistonPistonHastings Rings
SizeKit EachMoly
STD 355583586035220
.005 355593586135221
.010 355603586235222
.020 355613586335223
.030 355623586435224
.040 355633586535225
Compression Ratio
Sportster 900cc (3” Bore) Stock 9 to 1; Low (Not available)
Sportster 1000cc (3-3/16 Bore) Stock 9 to 1; Low 8.4 to 1
Harley 74: 1200cc (3-7/16” Bore) Stock 8.5 to 1; Low 7.5 to 1;
High 10.0 to 1.
Harley 80” 1340cc (3.298 Bore) Stock 8 to 1; Low 7 to 1
Piston Pin Locks
11051 Snap ring Evo 1983-on (22589-83) (10 pk)
www.prestoncycle.com
1-83
Wiseco Piston Kits
35985
Wiseco BT Evo 1984-99 (80 cu. in.)
8.5:1 compression with Hastings X Ring package. Will also
fit Screamin Eagle cylinder head with 9.75:1 compression.
Armour Glide coated skirt.
PCP
Wiseco Bore Ring Set Per Engine
35975 K1640STD35260
35976 K1641.01035262
35977 K1642.02035263
35978 K1643.03035264
35979 K1644.04035265
Wiseco BT Evo 3-5/8” B.B. 1984-99
Also fit thru 1997 stock stroke 4.250” (88 cu in.). 9.25:1 compression with Hastings X ring package .062” top ring, .062”
second ring and .158” oil ring.
PCP
Wiseco Bore Ring Set Per Cylinder
35985 K1670STD35961
35986 K1671.00535962
Wiseco BT Evo 3-5/8” B.B. 1984-99 Domed
Wiseco BT Evo 1984-99 (80 cu. in.)
10:1 compression with Hastings X Ring package: .062” top
ring, .062” second ring and .158” oil ring. Armour Glide coated
skirt.
PCP
Wiseco Bore Ring Set Per Engine
35760 K1665STD35260
35761 K1675.00535261
35762 K1666.01035262
35763 K1667.02035263
35764 K1668.03035264
35765 K1669.04035265
Also fit thru 1997 stock stroke 4.250” (88 cu in.). 10:1 compression with Hastings X ring package .062” top ring, .062”
second ring and .158” oil ring.
PCP
Wiseco Bore Ring Set Per Cylinder
35875 K1676STD35961
35876 K1677.00535962
Wiseco BT Evo Piston Kit 1984-99
Hastings Moly Piston Ring Set XL 2004-on Evo
XL 1200cc rings are sold in sets to do 2 pistons (1 engine).
Size
1-84
Hastings 2M5069
STD
35285
.005
35286
.010
35287
Bore: 3.498 (88.85mm)
Comp. Ring: 1.2mm Top ring
1.5mm 2nd ring
Oil Ring:
2.5mm
Kits have 11:1 compression with 4.250” stroke for 80 cubic
inch engines. Hasting X rings, top ring is .062”, 2nd ring is
.062” and oil ring is .158”. Kits include forged pistons, rings,
circlips and chrome piston pins.
35967 +.005 3.503” (K1691)
35968 +.010 3.508” (K1692)
www.prestoncycle.com
Wiseco Piston Kits
Wiseco’s extensive R&D programs have revolutionized the
power and performance of Wiseco’s HD piston kits. All Wiseco pistons are forged for superior strength and dependability. Kits include forged pistons, rings, circlips and wrist pins.
XL 883 Evo Overbore to 1200cc 1986-14
XL 1200 Evo Flat Top 1988-03 73 Cu. In.
9:1 compression with Hastings X Ring package: .062” top
ring, .062” second ring and .158” oil ring. All XL Evo and Buell
with stock 1200 heads.
PCP
Wiseco Bore Ring Set Per Engine
35855 K1660STD35260
35856 K1661.01035262
35857 K1662.02035263
35859 K1664.04035265
Reverse dome, 9.5:1 compression with Hastings X Ring
package: .062” top ring, .062” second ring and .158” oil ring.
No headwork required on 1986-07. 2008-11 must use 1200cc
cylinder. For 73 cu.in.
PCP
Wiseco Bore Ring Set Per Engine
35850 K1655STD35260
35851 K1656.01035262
35852 K1657.02035263
35853 K1658.03035264
Wiseco Evo XL 883 to 1200 Piston Kit 1986-14
Wiseco XL Domed Piston Kit 1988-03
Domed piston kit fits all Evo XL & Buell with stock 1200 heads
through to 2003. This kit offers 10.5:1 compression and a
3.812” stroke. Top ring is .062”, 2nd ring is .062” and oil ring is
.158”. No cylinder head modification is required and top end
gaskets are available separately. Kits include forged pistons,
rings, circlips, and chrome wrist pins.
PCPBore
35980 STD 3.498” (K1685)
35981 +.010 3.503” (K1686)
35982 +.020 3.508” (K1687)
35983 +.030 3.518” (K1688)
These kits offer 10:1 compression and 3.812” stroke with no
cylinder head modification required. Top ring is .062”, 2nd ring
is .062” and oil ring is .158”. Kit includes forged reverse dome
pistons, rings, circlips and chrome wrist pins. 2008-11 must
use 1200cc cylinder.
35887 STD 3.498” (K1682)
35888 +.010 3.508” (K1683)
35889 +.020 3.518” (K1684)
Wiseco XL 883 to 1200 Piston Kit 1986-14
This kit offers 8.5:1 compression and 3.812” stroke with no
cylinder head modification required. Top ring is .062”, 2nd
ring is .062” and oil ring is .158”. Fits Evo 883 XL overbore
to 1200cc (73 cu. in.) models 1986-on with correct gasket
kit. 2008-11 must use 1200cc cylinders. Kit includes forged
reverse dome pistons, rings, circlips and chrome wrist pins.
Armour Glide skirt coated pistons have a dome volume of
-13.7cc. on 1986-07. 2008-on must use 1200cc cylinder. Ring
sets are for 2 cylinders.
Wiseco Wrist Pins (each)
35937 1340cc BT Evo 1985-99
Wiseco wrist pin circlips (pairs)
35933
All Wiseco pistons
NOTE: Hastings X rings and Wiseco XC rings are NOT
interchangeable. Wiseco XC rings sold per cylinder.
PCP
CC Displ.
Bore
Wiseco
Ring Set
35845
1200cc
STD (3.498”)
K1723
35260
Valve pocket dimensions are measured from deck height:
Intake/Exhaust Pocket: Depth: -215”
Diameter: 2.100”
www.prestoncycle.com
1-85
Pushrods
S&S Pushrod Kits
S&S pushrods are engineered to help you obtain maximum horsepower through positive valve action and can be used
in any stock replacement or high performance engine application. All chrome moly steel pushrods are made of 7/16” OD
chrome moly steel tubing with pressed-in heat treated steel ends. This combination provides maximum strength and durability regardless of the performance application.
Important Note
It is recommended that an appropriate cam change be made when using solid lifter pushrods in late 1977-on engines. It is
S&S’s experience that excessive valve train noises are prevalent when a combination of solid lifter pushrods and the stock
hydraulic cam is used.
S&S BT Evo Adjustable Pushrods
Features 7/16” O.D. chrome moly adjustable pushrods.
935076 BT 80” 1984-99
935017 As above -3/16”
935018 As above -1/16”
S&S Quickie Pushrods
The threaded adjuster screws into the pushrod until the
threads disengage and the adjuster simply slides into the
pushrod making installation or removal a snap. Once the
pushrod is installed and adjusted the locknut prevents the adjuster from moving. The ball ends of the pushrods are drilled
so that oil can flow through the pushrod.
PCP ApplicationDisplacement
935120* 1984-99 BT
80-98”, 113”, 117”, 124” (not 88”)
*Not for 88” or Indian motorcycle engines as rear intake pushrod is too long
S&S Time-Saver Adjustable Pushrods
S&S Adjustable Pushrod Conversion Kit
Evo kit includes 7/16” O.D. adjustable type chrome moly
steel pushrods. These pushrods can be used in place of stock
non adjustable type with hydraulic lifters or with solid lifters in
any application.
PCPDescription
935033 XL 1986-90
935021 As above, +5/16”
935022 As above, +7/16”
935024 As above, +1.010”
935025 As above +1.100”
935022 XL 1991-03
935085 As above +5/16”
935089 As above, +7/16”
935086 As above, +.915”
935088 As above, +1.100”
1-86
No need to disassemble the top end or remove the rocker
arms to change pushrods or cam shafts. Larger 9mm chrome
moly tubing for superior strength and less flex. Single adjuster
end for 9.5” to 11.5” lengths. Use for stock height and taller
engines. Set of four.
9300052
Hydraulic Lifter Limited Travel Kit S&S
Designed to maximize the efficiency of the stock hydraulic
tappets on all Evolution engines.
335338 Fits 1984-85
www.prestoncycle.com
Pushrod, Multi-Fit
Preston Adjustable BT Evo Pushrods 1984-99
Made from 7/16” diameter 4130 military specification chrome
moly tubing with 9 x 1mm adjusters. Easy installation and
removal without disassembling engine. (USA)
30060
Sifton Quick Install Pushrod Set
Pushrods are designed to be installed without the removal of
rocker boxes or cylinder heads. Precision made from 4130
chrome moly tubing.
PCPApplication
30083 XL 1991-03
PCPDescription
17517 Converter bushings to fit all late 1985-on 1340,
1986-88 XL883/1100/1200 (18507-85)
12529 Locknuts 9/32-32 to fit the above kits and other p/rod adj. screws using this thread (18570-38) (4pk)
Sifton Tapered Adjustable Pushrods
292110
Andrews Adjustable Pushrods
Manufactured from 4130 steel with hardened adjusters and
ball ends. Set of 4. Fits 1984-98 FXST, 1986-98 FLST, 198494 FXR, 1991-98 FXD, and 1984-98 FLT.
21809 Fits hydraulic or solid Evo Big Twin
292140
Available for all Evolution engines. Fully adjustable with stock
diameter so there is no cover tube interference.
PCPType
292110 Aluminum
292140 Chrome-moly steel
292215
V-Thunder Pushrod Kits
Made from .049 wall 4130 chrome moly steel to exacting
tolerances for reliability. These rods fit stock or Velva Touch
Lifter units. Can be installed or removed without disassembling heads
30045 BT Evo 1984-99
30041 Stroker
30046 BT Evo 1984-99
30048 Twin Cam 2000-on
292245
Andrews EZ-Install Adjustable Pushrods
Available for all Evolution engines. Fully adjustable with stock
diameter so there is no cover tube interference.
PCPType
292215 Aluminum
292245 Chrome-moly steel
www.prestoncycle.com
1-87
Pushrod Cover Kits, Multi-Fit
Complete Pushrod Cover Kits, Multi-Fit
All parts from top to bottom fit all V-Twin engines. Visible parts
are all chrome and includes upper covers, inner cover, and
lower covers.
PCPFits
34106 Big Twin Evo’s 1984-99
34107 TC-88 1999-on
34108 All Evo Sportsters 1985-89
34105 Adapts PCP #34108 to XL 1990-on
34109 Sportster 883, 1200, 1 piece design 1990-03
34110 As above, 16 piece design 1990-03
Chrome Billet Pushrod Cover Kit BT 1984-99
BT Chrome Pushrod Cover Dress-Up Kit
Pushrod cover kit includes all pieces and seals for complete
installation on BT Evo models.
30049
Kit includes chrome lifter base covers for 1984-99 Evo.
59173
Jims Pro-Lite Evo Pushrods
S&S Pushrod Cover Kits
Includes top and bottom covers, cover cap, cover spring, and
spring washer for four pushrods.
PCPApplication
934039 TC 1999-on, BT Evo 1984-99 and XL 1986-90
934038 As above, for engines 1” or more taller than stock
1-88
Adjustable pushrods for Big Twins are made from aerospace
quality heat treated aluminum with steel ends. Does not require dissasembly of top end or removal of the cam. Pushrods
will replace OEM 17921-83, 17924-83, 17927-83, 17930-83
and S&S 935076. Will work with .200 taller cycle in drive.
31178 BT Evo single cam 1984-99
www.prestoncycle.com
Push Rod Covers, Multi-Fit
Chrome Push Rod Cover Hardware 1936-on
Pushrod Cover Kit
Lower pushrod covers and upper clips used when installing
adjustable rushrods in Twin Cam motors. Requires the use of
OEM springs, retainers and washer.
72148
PCPFits
73545 XL 1986-89 clips (17950-86) (4 pack)
13101 Spring (17947-36) (10 pack)
2002 Chrome cup (17945-36) (4 pack)
13557 Spring washer (6762B) (10 pack)
Chrome Lower Pushrod Cover Kits
Stock pushrod covers are duplicates of the OEM part.
9202 BT Evo with 8 seals 1984-99
Upper Pushrod Cover Kits
Upper, Inner Pushrod Covers
1929
9213
Each kit contains 4 chrome plated retaining clips, 4 chrome
plated cups, 4 springs, 4 cork gaskets, and 4 steel washers.
Exact duplicates.
Chrome Plated (Outer)
1772 BT Evo (3-5/16” clips)
9865 BT Evo with S&S lifter blocks (3” clips)
9887 Sportster 1986-90 (2-13/16” clips)
Quad Seal Style L1979-on
Colony BT Evo 1984-99 (Quad)
www.prestoncycle.com
1-89
Valve Springs
Jims Valve Spring Kits BT 1984-04
PCP
31170
31171
31172
31173
Lift Open #
.600160
.600160
.675184
.675184
OD
1.460
1.460
1.510
1.510
ID
.700
.700
.745
.745
Retainers
Chrome-moly
Titanium
Chrome-moly
Titanium
S&S High Performance Valve Spring Kits
Kits fit stock style and S&S Super Stock Heads on 1984-04
BT. O.D. of outer spring fits within stock spring compartment. Used with “no shoulder” style valve guides and special
keepers fit stock 5/16” diameter stemmed valves and S&S
collars only (these guides can be retrofitted to early BT V2
heads equipped with “shoulder” style valve guides). Features
patented steel top collars specially drilled to lighten and allow
oil to cool springs. Includes 4 of .015” and 4 of .030” shims.
Good for lifts up to .640”.
902077 Kit with steel top collars
902078 Kit with titanium top collars
Valve Keeper Keys BT and XL
Split type, sold in 8 packs, enough for one engine.
PCPDescription
30013 Evo 1983-99 & Twin Cam 1999-04 (18229-83)
34585 Crane 175# spring keepers
Andrews Evolution High Lift Springs (Multi-Fit)
When installed on Evo engines with titanium spring collars,
cam lifts of .560 are possible. Installation does not require
machining of heads. High lift springs and collars make installing big cams easier.
294150 4 Inner and outer springs
Skull Push Rod Cover Cups
Feature die-cast construction with chrome or gold plating, set
of 4. Matching Kromettes with 1/4 x 20 studs in 5 packs also
available.
PCPDescription
44010 Chrome cups
44002 Chrome kromett
44005 Chrome kromett w. red eyes
44003 Gold kromett
1-90
Pushrod Cover Rubber Seal Kit
Fits all BT1984-on and XL 1986-90 and includes 12 machined
rubber seals.
9529 Colony
14580 Preston
www.prestoncycle.com
Valve Springs
Valve Spring Kits (Eastern)
Includes all springs, collars and keepers necessary for each
application.
PCPModel
32018 1340 E1985-04 (18201-83, 18202-83, 18219-83)
XL 1986-on (18222-83A, 18229-83)
Note: Valve guide oil seals will require machining of
valve guide and/or collar in order to re-establish overall
valve guide height on all but the latest-style valve guides.
Installation tools are available separately. Refer to service
manual and valve guide specifications for modifications
required.
Stock Valve Spring Kits
Each valve spring kit is manufactured from top quality materials. Heat treated with machined ground end for a perfect fit.
Made in USA.
32005 1983-04 BT and 1986-on XL (18201-83, 18202-83)
K/W EVO/TC Valve Guide Oil Seals
This will dry the combustion chamber and end smoking problems. Sold in 10 packs.
32345 Evo 883-1200 and BT 1984-04
EVO/TC Valve Shims
Used on Twin Cam an all Evolution Engines 1984-04
PCPFits
13505 Evolution .015” thick (20 pack)
13506 Evolution .030” thick (20 pack)
K/W EVO Valve Guide Oil Seal Sets
For one engine.
32199 Sportster and Big Twin with one sleeve
Evolution 1984-04 (4 pack)
Evolution Valve Collars
K/W Valve Guide Oil Seal Set
Set of two seals only.
PCPItem
32213 5/16” Green
32225 3/8” Red
32227 11/32” Yellow or clear
61-74-80 OHV
PCPApplication
30003 Lower 1984-on 1340 Evo (18222-83)
30006 Upper 1984-on 1340 Evo (18219-83)
Sportster 883-900-1000-1100-1200
PCPApplication
30003 Lower 1986-on 883-1100 & 1200 (18222-83)
30006 Upper 1986-on 883-1100 & 1200 (18219-83)
www.prestoncycle.com
1-91
Valve Springs
Crane EVO Valve Spring Sets
Manufactured from the finest quality spring wire
and precision wound. Kits come with choice
of chromoly 4140 steel retainers or titanium
retainers. Chromoly retainers offer strength and
durability while eliminating inaccurate assembly
heights. Titanium retainers are strong and light
which allows the valve to move easily, producing
more power. Note # is the symbol that denotes
pounds.
Crane Valve Spring and Retainer Kits
PCP
Nominal Diameter
Retainer Type
Seat Pressure &
Installed Height
Nominal Open
Pressure &
Height
Coil Bind
Height
Inside
Outside
34694
.800
1.460
Titanium
155# @ 1.800
352# @ 1.280
1.080
34695
.800
1.460
Steel
175# @ 1.700
352# @ 1.180
1.080
Crane Evo H-11 Tool Steel Valve Springs-EVO
Premium steel springs are heat treated for strength and
absolute reliability. Springs increase horsepower and rpm on
virtually any application. These new springs also feature:
• Installed height of 1.8”-for use with up to .650” valve lift
• 1.460” Outside diameter
• 180/185 lbs. Seat pressure @ 1.150”
• 480/485 lbs. Open pressure @ 1.150”
34572
Valve Spring Compressor Tool
Jims tool for removing or installing valves. Hardened ball
bearing style tip at valve head end eliminates damage to
valve. Can be clamped into vice and includes valve collar
receiver for safer tool use.
31471 O.H.V. BT and XL including Twin Cam and all aftermarket heads
1-92
www.prestoncycle.com
Valve Springs
Kibblewhite BT Evo with 5/16”Stem Valves
32156
32154
32158
“Performance Rebuild” Ovate Wire Beehive
Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits “Beehive”
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32154
.600”
160-170 lb.
370 lb. @ .600”
Steel
32155
.630”
180-190 lb.
370 lb. @ .630”
Steel
Retainers
*32155 Not recommended for lifts over .630”
Kibblewhite Valve Spring Kits
Lightweight Racing Valve Spring Kit -Standard Springs
Includes springs, retainers, keepers, collars and spring shims.
PCP
Lift
Seat Pressure
32156
.550”
150-160 lb.
380 lb. @ .550”
Titanium
32157
.550”
150-160 lb.
380 lb. @ .550”
Steel
Retainers
Lightweight Racing Valve Spring Kit -Standard Springs
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32158
.600”
170-180 lb.
380 lb. @ .600”
Titanium
32159
.600”
170-180 lb.
380 lb. @ .600”
Steel
32160
.655”
185-195 lb.
450-460 lb. @ .655”
Titanium
32161
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
Retainers
S&S .585” Lift Valve Spring Kits
Kits fit Twin Cam 88 Big Twins with stock heads and all S&S
Super Stock heads. Dual springs reduce the risk of valve
float. Suitable for performance applications and accomodates
camshaft lift to 0.585”.
Lift
Installed Height
Seat Force
Force @Max Lift
Max RPM
.585”
1.850”
135 lb.
325 lb.
6500
PCPFitment
9000593 1984-99 BT with 5/16” valve stems
S&S .640” Triple Lift Valve Spring Kits
Kits fit stock style and S&S Super Stock Heads. O.D. of outer
spring fits within stock spring compartment. Used with “no
shoulder” style valve guides and special keepers fit stock
5/16” diameter stemmed valves and S&S collars only (these
guides can be retrofitted to early BT V2 heads equipped with
“shoulder” style valve guides). Features patented steel top
collars specially drilled to lighten and allow oil to cool springs.
Includes 4 of .015” and 4 of .030” shims. Kits are good for up
to .640 lift
902077 Kit with steel top collars BT 84-99 & XL 86-03
902078 Kit with titanium top collars BT 84-99 & XL 86-03
www.prestoncycle.com
1-93
AV&V Valve Springs
AV&V Valve Spring Kits 1984-04 for 5/16” Valve Stems (not 7mm stems)
Premium springs are manufactured without compromise from an ultra clean, high silicon and vanadium kobe alloy wire; the
best alloy available on the market for high lift and endurance applications. The chrome moly 4140 steel retainers are the strongest most durable retainers offered. High grade titanium retainers add strength and reduce weight allowing the spring pressure
to operate more efficiently. This lets your motor accelerate quicker and produce more power. Springs feature a small O.D. of
1.460” so very little or no grinding is required to the inside of the rocker cover.
AV&V Selection Chart for 1984-04 with 5/16” Valve Stems
PCP
Recommended
Lift
Retainer
Type
Application
Seat Pressure &
Initial Height
Nominal Open Pressure and Height
Coil Bind
Height
34027
.600”
Steel
Evo
155# @1.885”
405# @ 1.260”
1.080
34028
.600”
Titanium
Evo
155# @1.885”
405# @ 1.260”
1.080
34032
.650”
Steel
Evo
185# @ 1.860”
460# @ 1.160”
1.080
34033
.650”
Titanium
Evo
185# @ 1.860”
460# @ 1.160”
1.080
AV&V High Performance Beehive Spring Kit for 5/16” Valve Stems
Manufactured from ultra clean high silicon kobe alloy wire then micro shot peened and nitrided. Features CNC machined extreme duty 9
deg. locks and ultralite chromoly forged retainers.
1-94
Small End
Large End
PCP
Lift
Application
Seat Pressure &
Initial Height
Nominal Open Pressure and Height
Coil Bind
Height
I.D.
O.D.
I.D.
O.D.
34065
.600”
Evo
165# @ 1.860”
384# @ 1.250”
1.200”
.650”
1.085”
1.000”
1.445”
34066
.650”
Evo
178# @ 1.880”
385# @ 1.200”
1.150”
.740”
1.185”
1.055”
1.500”
www.prestoncycle.com
Valve Guides
Rowe Unhoned Small Bore
Cast Iron Guides
Evolution with flange .300”
shorter
Int./Exh.Size
17590
STD
17591
.001
17592
.002
17593
.003
Rowe Valve Guides
Cast Iron
Model
Size
Intake Exh
Evo 1984-on STD
17680
BT and XL
+.001 .5620
+.004 17674 +.005 1767517685
+.006 1767617686
+.008
S&S Valve Guides
Ampco 45
Intake Exh
17510 17510
17511 17511
1752217522
1751517515
1752317523
PCPDescription
902210 STD V2 Int/Exh
902211 +.001 V2 Int/Exh
902212 +.002 V2 Int/Exh
902213 +.003 V2 Int/Exh
902219 +.030 V2 Int/Exh
AV&V High Performance Valve Guides for Evo
and Twin Cam Models to 2004
These manganese bronze guides have a shortened seal area
and are tapered for use on high lift and high flow applications.
Use with .530” valve seals.
IntakeExhaustOversize O.D.
I.D.
3175631768 STD
.5625”.308”
3175731769 .001”
.5635”.308”
3175831770 .002”
.5645”.308”
3175931771 .003”
.5655”.308”
3176031772 .004”
.5665”.308”
3176131773 .005”
.5675”.308”
3176231774 .006”
.5685”.308”
3176331775 .008”
.5705”.308”
3176431776 .010”
.5725”.308”
3176531777 .012”
.5745”.308”
3176631778 .015”
.5775”.308”
3176731779 .025”
.5875”.308”
AV&V High Performance Valve Guides for Evo
and Twin Cam Models to 2004
These manganese bronze guides are stock length for direct
stock replacement. Use with .530” valve seals. Same guide
will fit intake or exhaust.
PCP OversizeO.D.
I.D.
31801 STD.5625”.308”
31802 .001”.5635” .308”
31803 .002”.5645” .308”
31804 .003”.5655” .308”
31805 .004”.5665” .308”
31806 .025”
.5875”.308”
AV&V Valve Seats
These valve seals are made from heat and wear resistant
high quality alloy steel, and are manufactured with clear
identification markings and radius edges for easy installation.
These seats will resist intense valve pounding and effectively
dissipate heat for consistant valve sealing. These valve seats
will increase in hardness during engine break-in period.
Exhaust and intake valves are made from the same material,
choose size as needed. Machining may be required.
PCP O.D.I.D. Thickness
31787 1.630”1.180” .385”
31789 1.757”1.371” .315”
31780 1.757”1.410” .430”
31788 1.880”1.439” .410”
31784 1.944”1.570” .400”
31781 2.008”1.610” .440”
31782 2.040”1.590” .420”
31790 2.068”1.750” .315”
31783 2.070”1.610” .460”
31785 2.135”1.750” .400”
31786 2.163”1.750” .455”
www.prestoncycle.com
1-95
Kibblewhite Valve Guides
Valve Guides
Shouldered guide w/Viton Seal
Shortened for .600” Lift
A
0.650”
D
1.400”
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
Intake-Guide (Std. 0.5620”)
C630 Bronze
PCP
Size
32162
Std.
32163
+0.001”
32164
+0.002”
32165
+0.004”
32166
+0.010”
A
0.650”
D
1.450”
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
Valve Guides
Valve Guides
Shouldered guide - .420” Top
Shortened for .600” Lift
OEM Style - .420” Top
A
0.375”
D
B
0.375”
E
C
1.700”
F
2.025”
0.3098”
Intake/Exhaust-Guide
(Std. 0.5620”)
C630 Bronze
Cast Iron
PCP
Size
PCP
Size
32237
Std.
32283
Std.
32238
+0.001”
32284
+0.001”
32239
+0.002”
32285
+0.002”
32240
+0.003”
32286
+0.003”
32241
+0.004”
32287
+0.004”
32242
+0.010”
32288
+0.010”
Exhaust-Guide
(Std. 0.5620”)
C630 Bronze
A
0.650”
D
1.400”
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
Intake-Guide
(Std. 0.5620”)
C630 Bronze
Cast Iron
PCP
Size
PCP
Size
32183
Std.
32247
Std.
32184
+0.001”
32248
+0.001”
32185
+0.002”
32249
+0.002”
32187
+0.003”
32250
+0.003”
32188
+0.004”
32251
+0.004”
32189
+0.010”
32252
+0.010”
PCP
Size
32167
Std.
32168
+0.001”
32169
+0.002”
32170
+0.004”
A
0.650”
D
1.450”
+0.010”
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
32171
Exhaust-Guide
(Std. 0.5620”)
C630 Bronze
Universal Ball Hones
Kibblewhite precision valve guide hones
are durable enough to size C630 bronze
and cast iron valve guide materials.
PCPSize
32115 7.0mmm
32116 5/16” (.3125”)
32117 3/8” (.3750”)
1-96
www.prestoncycle.com
Cast Iron
PCP
Size
PCP
Size
32190
Std.
32277
Std.
32191
+0.001”
32278
+0.001”
32192
+0.002”
32279
+0.002”
32193
+0.003”
32280
+0.003”
32194
+0.004”
32281
+0.004”
32195
+0.010”
32282
+0.010”
Kibblewhite
Kibblewhite 1984-99 Evolution Valves
Black Diamond Valves
Seal Installation Tools
•For OEM style replacement seals
PCP
UM
32211
Each
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32172
EX
1.615”/41.02mm
0.3096”
29°
4.520”
Standard
(OEM 18082-83)
32173
IN
1.840”/46.74mm
0.3100”
23°
4.445”
Standard
(OEM 18074-83B)
Installation Protectors
PCP
32213
Stem Diam.
UM
0.3125”
Pair
Black Diamond Valves
Specially designed for HD Racing applications
OEM Style Replacement Seals
PCP
Guide Ø
Stem Ø
UM
32199
0.420”
0.3125”
4 pack
Replacement Keeper Set
•OEM style
PCP
UM
30013
8 pack
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32174
IN
1.940”/49.28mm
0.3100”
23°
4.400”
Replacement
(Branch heads)
32176
IN
2.000”/50.80mm
0.3100”
23°
4.445”
Oversize
(STD heads)
32177
IN
1.900”/48.26mm
0.3100”
28°
4.420”
Oversize
(racing profile)
32178
EX
1.630”/41.40mm
0.3096”
40°
4.520”
Oversize
(*Inconel)
32179
EX
1.615”/41.02mm
0.3096”
RO1.625
4.460”
Replacement
(Branch heads)
32180
EX
1.630”/41.40mm
0.3096”
40°
4.520”
Oversize
(racing profile)
32181
EX
1.650”/41.91mm
0.3095”
24°
4.480”
Oversize
(STD heads)
32182
EX
1.750”/44.45mm
0.3095”
24°
4.480”
Oversize
(STD heads)
*Inconel is a high nickle content stainless steel super alloy. It retains its mechanical properties at
higher temps, resists valve face pitting and recession in performance applications with unleaded or
exotic fuels. Excellent choice for turbocharged and nitrous applications.
Recommended Valve Guide Seals-4 Pack
PCP
Type of Seal
Guide Top Diam.
32256
IN/EX, style 5, Steel clad Viton
0.420”
32259*
IN/EX, style 6, Solid White PC style Seal
0.415”
*May require use of seal cutter
Cylinder Dowels
Powdered Metal Valve Seats
•All Evolution models
PCP
32332
O.D.
0.5575”
•Recommended for Evo’s
•Compatible with leaded and unleaded fuels
including methanol and ethanol fuel blends
•Excellent thermal characteristics
UM
4 pack
www.prestoncycle.com
A
PCP
+/-.0002
+/-.0005
B
+/-.0005
C
Type
32366
1.9690”
1.535”
0.453”
IN
32367
2.0070”
1.562”
0.450”
IN
32369
2.1320”
1.690”
0.450”
IN
32365
1.7570”
1.375”
0.450”
EX
1-97
Release Valves and Seals
AV&V Solid Carbide Valve Guide Reamers
These unique reamers feature a 2” long pilot for a perfect alignment with the valve guide while reaming and are
specially designed for use with manganese bronze material.
Valve guides can be reamed to exact dimension without any
taper in just a few seconds. These durable tools will last for
hundreds of guides. When using AV&V valves and guides this
one tool allows you to fit both intake and exhaust.
AV&V Compression Release Valves (Pairs)
AV&V compression valves are available as a stock replacement and in short thread styles. Short thread valves are easy
to install as you don’t need to machine the heads as deeply
as when using stock OEM style valves. All valves feature a
high temperature resistant knob that comes in a charcoal
colour to more closely match heads. 10 x 1.0mm threads.
PCP
Thread Protrusion Recommended Application
34041 ShortShortEvo models
34042 Short
Long
Twin Cam
34043 LongLongStock replacement
PCP
Diameter
Application
34044*
7mm +0.001”
Stock OEM valves
34045
0.3110”
Evo, Twin Cam
34046
0.3115”
Evo, Twin Cam
34047**
0.3120”
Evo, Twin Cam
*HD 7mm valves are .001” oversized, #34044 must be used to fit
AV&V bronze guides to accept OEM valves
** Recommended size for all Evo and Twin Cam AV&V valves
Fluoro-Viton Seals (5 Pack)
AV&V Viton Valve Seals (4 Pack)
Seals resist higher temperatures to offer superior sealing.
PCP
Application
Guide O.D.
I.D.
34035 V-Rod
8.5mm6mm
34037 OEM style
0.562”
7mm
34038* Evo, Twin Cam
0.420”
5/16”
34039 Evo, Twin Cam
0.530”
5/16”
* Designed for shortened valve guide length due to the limited
clearance between stock guides and upper spring coll
1-98
Seals are made from a fluoro-viton polymer with teflon added
to prevent valve to seal friction. A metal spring keeps constant
seal to valve tension to prevent oil consumption. These seals
are then bonded to a steel jacket that provides a secure fit to
the guide. The internal ribs are designed to allow for installation without any tools, but hold secure after installation.
PCP Application StemGuide
32276 V-Rod
6mm .347
32275 Evo
7mm.562
32274 Evo 5/16
.420
www.prestoncycle.com
Valves
Rowe Valves with Machined Heads
Jims Evo and Twin Cam Black Tulip Valves
Rowe TC/EVO Machined Valves 1984-04
High flow, forged one piece valves made from 21-4N stainless
steel. Precision CNC machined with black melonite heat treating process (nitride), chromed or plain. Sold each.
Head Diam.
PCP RoweApplication + .005
32234 700-12 Intake TC/EVO chromed
1.844
32217 700-14 Intake TC/EVO -.040 shorter 1.844
32214 714-13 Intake TC/EVO +1/16 head
1.900
-.048 shorter
32220 700-51 Intake TC/EVO +.100 head 1.944
plain stem
32215 915-13 Exhaust Twin Cam black
32232 701-13 Exhaust EVO black
1.610
32219 701-14 Exhaust EVO-.040 shorter
1.610
Jims completes the quest for the ultimate valve train system
with the addition of these high-performance valves. Designed
to withstand extreme conditions, these valves are constructed
from a forged one piece racing grade stainless steel alloy, and
specially heat-treated and processed with nitride for superior
wear resistance. A special micropolished 45 degree angle just
below the lock groove prevents excessive stress on the valve,
and makes valve seal installation easier.
Evo and Twin Cam valves represent the latest evolution in
performance valves with their high-radius stem to valve transitions. Longer life and better flow was the emphasis in the development of these valves, and through extensive testing the
valve contouring has been optimized for both aerodynamic
and volume maximization with the longest life of a valve possible. Use on 1984-on Evo BT and 1999-on TC engines and
most aftermarket performance heads.
Head
Stem
PCP
Type
Diam. Length Diam. Profile
31651 Exhaust1.610”4.525” .3106”Dished
31652 Exhaust1.570”4.525” .3106”Dished
31653 Exhaust1.610”4.525” .3106”Flat
31654 Intake 1.900”4.440” .3108” Dished
31655 Intake 1.940”4.440” .3108” Dished
31656 Intake 2.020”4.440” .3108” Dished
Preston’s BT EVO-TC Valves w/Forged Stems
1984-04
Hard Chrome
HeadIntake
STD
3467
www.prestoncycle.com
1-99
Valves
Topline BT Evolution Cylinder Heads
USA made heads are available in plain or black wrinkle finish
and include seats and guides. Sold each.
FrontOEM
Rear OEM
Application
65202 16691-85C
-
16690-85B BT 84-91, plain
65208 16696-92
BT 92-99, B/W
EVO & TC Rocker Arm Shaft
31198 Jims
30300 Preston USA
AV&V Black Tulip and Chrome Tulip Valves
These superb valves feature the highest flow on the market.
One piece valves are forged from a racing grade stainless
steel alloy and are available in hard black or chrome finish.
Each valve has a bearing quality hardened tip at the end of
the stem to prevent premature wear with high lift applications. The Tulip Valve design also features a 45 degree angle
below the lock groove to reduce the stress in this area and to
facilitate the valve seal installation. Each valve is heat treated
with a special process and the stem is centreless grinded to a
microfinish for a longer life.
Evolution Big Twin
Head
Stem
PCP Type
Diam. LengthDiam. Finish
31791 Exhaust1.570”4.525” .3106”Black
31792 Exhaust1.610”4.525” .3106”Black
31793 Exhaust1.610”4.525” .3106”Chrome
31794 Intake 1.900”4.440” .3108” Black
31795 Intake 1.900”4.440” .3108” Chrome
31796 Intake 1.940”4.440” .3108” Black
31797 Intake 1.940”4.440” .3108” Chrome
31798 Intake 2.020”4.440” .3108” Black
Chrome Head and Spark Plug Cover 1986-99
AV&V Stainless Steel Valves
These valves are heat treated and nitride processed for excellent wear resistance. These valves feature a 45 degree angle,
cut below the lock groove to reduce stress in this area, as well
as making valve seal installation easier.
Fits 1986-99 evolution models. Covers are held in place by
supplied rubber inserts.
59703
Evolution BT Valves 1984-99
PCP
Valve
Head Diam.
31662 Exhaust1.615”
31661 Intake1.845”
1-100
www.prestoncycle.com
BT Evo
Preston’s BT Evo Rocker Arm and Shaft Kit
Fits BT 1984-on and XL 1986-on models. Kit includes 2
(17375-83) rocker arms, 2 (17360-83) rocker arms and 4
(17611-83) shafts.
32333 Kit
30058 F/Int and R/Exh rocker arm (17360-83)
30059 R/Int and F/Exh rocker arm (17375-83)
30300 Shaft only, Preston (17611-83)
31198 As above, Jims
31100
31102
S&S Standard Forged and Roller Rocker Arms
Forged steel for maximum strength. Roller tip reduces side
thrusting on valve stem in high lift applications and .750”
bushings provide 50% more load bearing area than stock.
Recommended for cams of .585” lift or more. Fits evolution
BT, XL and all TC engines.
PCPItem
Ratio
9004065 Roller arm set 1.625:1
9004098 Roller arm set 1.725:1
9004119 Standard forged 8620 steel arm set
*Adjustable pushrods must be used w/roller arms to obtain
proper valve clearance
Jims Rocker Arm Bushing (Must be Reamed)
31100 17428-57
31102 17428-83K
Stock replacement BT 66-on,
XL 57-on (8 pack)
Jims roller rocker bushings less mill slot not to be used on Shovels or Ironhead XL I.D. .555” (8 pack)
Jims Roller Rocker Arms
Precision, American made rocker roller arms are investment
cast from purified, aircraft quality, 4340 chrome moly steel.
Both stock and aftermarket rocker arms were analysed to determine a baseline for the design: 660 bronze bushings were
retained and a bearing grade steel roller tip was integrated
into the design. Rocker arms feature a segmented parabolic
pushrod cup that reduces friction, wear, and improves roller
tip oiling. Stock ratio of 1.625 will easily accomodate a .700”
lift cam (at the valves). Replaces 17360-83 and 17375-83.
Set of 4.
31251 BT 1984-on, XL 1986-03
Rocker Arm Bushings (Kibblewhite)
•Constructed of SAE660 bearing bronze bar stock
PCP
Application
UM
32233
O.D.-0.6795”
8 pack
www.prestoncycle.com
1-101
BT Evo
Topline BT Evo Rocker Cover Components
Chromed, sold each. Each motor will require 2 of each
1984-91
64239 Cover spacer (17529-84A)
Topline Gaskets U.S.A.
BT Evo
25904 Graphite head Evo .055 (16770-84D) (pr)
25908 Rocker kit 1984-91 (17038-90)
25909 Rocker kit (17042-92A)
Preston Chrome BT Evo Rocker Cover Sets
Die cast, machined covers are polished and chromed. These
covers have a slightly changed contour than stock around
screw holes for a smoother look. Complete 6 piece set
includes all necessary gaskets and chrome allens for installation for both heads.
PCPApplication
45910 BT 1984-91
45911 BT 1992-99
1-102
www.prestoncycle.com
BT Evo
S&S Style Chrome
Rocker Box Set 1984-99
Two piece set for two heads on
1984-99 Evo models.
59555 Rocker box set
25406 Gasket set
Chrome EVO Rocker Box Cover Set
6 Piece chrome set fits FXST, FLT 1984-91, FXD 1992-98
and FXR 1992-94. Replaces 17503-84A and 17521-84.
45912
Chrome Rocker Box Top Cover with D-Ring
Fits 1984-91 BT models. Gaskets are sold separately.
59049
S&S Chrome Head
Bolt Covers
Jims Compression Release Valves
These release valves make starting your engine effortless by
venting cylinder compresion with just the push of a button.
These are indispensable when used with stroker kits, high
compression engines and large displacement engines. Simply
drill and tap each cylinder head and thread in the self-sealing
release valves.
31283 Fits all BT and XL
Dress up your engine with
these magnetic chrome
head bolt covers. Easy
installation, no tools or
adhesives required. A
powerful magnet holds
cover in place, yet allows
easy removal. Chrome
plated steel looks great on
any engine especially on
polished engines. For S&S
head bolts only.
500333 Set of 4
Chrome Rocker Box Bolt Covers
Fits 1984-on Evolution 1340 and XL models.
29209 43943-01
Chrome Head Bolt Covers
Covers fit BT 1986-99 and XL 1983-90.
44043 Grooved
44044 Smooth
www.prestoncycle.com
1-103
BT Evo
Jans James OEM 79218 16773-85
2502179226 16774-86A
79227 16774-86AC
14538 26432-76A
79366 16779-84-X
79219 16773-85T
79506
16773-85TS
79249 17355-84
2503379252 17356-84
79255 17358-84
79256 17358-84-A
79270 18633-48D
79274 18634-48C
25170 63858-49
14525 11145 (10)
14521 11157 (10)
Item
Head Gasket
Cyl. Base
Coated cylinder base
Stud O-Ring
1 piece rocker w/silicone
.046 Blk head gasket (5pk)
.046 BB w/silicone bead
Lower Rocker, cork
Upper Rocker, cork
Centre Rocker, cork
Centre top rubber 87-99
Rear Tappet
Front Tappet
Washer (drain plug)
Lower Push Rod Cover
Upper Push Rod Cover
James Genuine Metal Cylinder Base Gasket
Gasket has a steel base metal which has been coated on
both sides with a specially formulated high temperature oil
resistant rubber compound. Silicone beading around the inner
and outer perimeter forms a seal on both sides of gasket.
Pairs.
PCPDescription
79240 BT Evo 1984-99 (16777-94)
79525 BT Evo 3-5/8” (16777-94S)
79228 XL Evo 1986-08 (16774-96)
HES Head-Base Gasket Sets
Feature .040 special copper head gaskets and .007” thick
aluminum base gaskets, will not compress or torque, and
have great detonation resistance. Kits include 2 head & 2
base gaskets.
25720 1984-91 80” EVO
25721 1986-91 XL EVO 1200
79974
EVO Big Twin Rocker Cover Gasket Kits
These gasket kits include both rocker to head gaskets and
your choice of Molded O-Ring or Cork cover gaskets with
bolt seals and washers for two heads for models listed.
PrestonJames Type Year
79972Cork1984-91
79973 O-Ring1984-91
79991
As above w/steel
2541579974 O-Ring1992-99
79992
As above, w/steel
1-104
S&S Gaskets
931011 Head gasket, stock EVO 3-1/2” (each)
931013 Head gasket, stock EVO 3-1/2” (each)
www.prestoncycle.com
BT Evo
79980
79974
James Rocker Cover Gasket Kits
79963
PCPOEM
79972 17033-83-R
79973 17038-90
79974 17042-92
Description
1340cc 1984-91, cork
1340cc 1984-91, rubber
1340cc 1992-99, rubber
79985
James Top End Gasket Kits Evo BT 1984-99
PCPOEM
79961 17033-83*
79980 17033-83-A
79984 17040-92
79963 17033-92
Description
1984-91 (cork and teflon)
1987-91 (rubber & Teflon)
1992-99 (.045 & rubber rockers)
Big bore 1992-99 (.045 & rubber)
James Motor Gasket Kits
PCPOEM
79982 17035-83-B
79985 17041-92-A
Description
1340cc 1984-91, rubber 4 & 5 speed
1340cc 1992-99, rubber
James Rocker Cover Gasket Kit
Includes coated steel base gaskets. Replaces 17042-92-X.
79992 Kit
James Rocker Gasket Kit with Steel BT 84-91
79991 17038-90-X
www.prestoncycle.com
1-105
BT Evo
Topline BT Gaskets
James Evo BT Top End Kits
Top end only kit w/.046” by 3-5/8” head gaskets for use on
Evo BT with S&S rocker boxes.
79996
25909 17042-92A Rubber rocker box kit 1992-99
904047
25908 17038-90
Rubber rocker box kit 1984-91
S&S Evo Rocker Cover Gasket Kits
79215
Gasket kits for S&S rocker covers feature o-ring style seal
between upper and lower cover.
PCPDescription
904046 1984-91 stock rubber (17038-90)
904047 1992-99 stock rubber (17042-92A)
904049 S&S billet, all BT & Sportster Evo
904091 S&S billet, all BT & Sportster Evo
79216
79218
James Head Gasket 1984-99
79553
1-106
79215 16770-84-A
79216 16770-84-B
79217 16770-86-S
79218 16773-85
79219 16773-85-T
79506 16773-85-TS
79553 16770-84-X
79506
.046” Head gasket and coated base with 4 blue o-rings (kit)
.048” Carbon graphite head gaskets with o-rings (5 pk)
3 5/8” .064” Blue teflon head gasket & .016” cylinder gasket kit with 4 red o-rings (kit)
.064” Black teflon head gaskets (5 pk w/10 o-rings)
.046“ Black teflon head gasket with o-rings (5 pk)
.046” 3 5/8” Head gasket with silicone (5 pk)
.036” Head gasket 1984-01 (2 pk)
www.prestoncycle.com
BT Evo
PCP OEM 1 40019 16219-79B
1A N/A 16510-83A
1B N/A 16691-85C
2 10807 16715-83
3 79218 16773-85
4 25021 16774-86A
5/6 79366 1677-84X
5/6 79581 16779-99X
7 10816 16837-85C
9424 16837-85B
8 79249 17355-84A
9 25033 17356-84A
10 79255 17358-84A
11 29004 17360-83
12 29005 17375-83
13 18503 17428-57
14 30300 17611-83
31198
15 29006 18011-86
16 29008 18020-83
17 N/A 18523-86
17A15623 --
15624 --
18 N/A 18540-83B
N/A 18542-83B
19 79270 18633-48C
79271 79273 18634-48C
79274 20 14538 26432-76A
21 25170 63858-49
22 18705 16573-83
Hard Parts
Description
Year
Stabalizer link,
80-
top (not FXST)
Cylinder & piston
85-*
Front head
85-91
Stud exhaust
85-*
Head gasket (2)
84-*
Base gasket (2)
84-*
1 pc rocker, paper 84-*
As above steel
84-*
Cylinder stud (8)
85-*
Cylinder studs, Colony85-*
Rocker gskt/lwr,cork (2)84-91
Rocker gskt/up,cork (2)84-91
Cork gskt/In (2)
84-91
Rocker arm F/I, R/E 84-*
Rocker arm R/I, F/E 84-*
Bushing rocker (8)
66-*
Rocker shafts (4)
84-*
Jims as above
Exhaust seat STD (2) 84-*
Intake seat STD (2) 84-*
Tappet roller (4)
86-*
Roller with pin (4)
86-*
Roller set
86-*
Guide block rear
84-*
Guide block front
84-*
R/Tappet gask .031 48-91
As above .020
92-99
F/Tappet gask .031
48-91
As above .020 92-99
O-Ring
84-*
Washer, screw
84-*
Steel insert
84-*
U/M
Each
Each
Each
5 Pk
5 Pk
10 Pk
Pr
Pr
Each
8 Pk
10 Pk
10 Pk
10 Pk
Each
Each
4 Pk
Each
Each
Each
Each
Each
Each
Set
Each
Each
10 Pk
10 Pk
10 Pk
10 Pk
10 Pk
10 Pk
5 Pk
Topline Evo Top End Gasket Kits
SEE THE GASKET SECTION FOR MORE GASKETS
PCPApplication
25921 1984-91 FXST, FXR, FLT (17033-83A)
www.prestoncycle.com
1-107
BT Evo Rocker
Top Motor Mount to Cylinder Head Bracket Kit
EVO Finned Rocker Cover
Die cast aluminum. Besides looking great, these covers
provide cooler oil running temperature due to the heat sink
construction of the fins.
6840 Polished (1984-91)
6841 Chrome (1984-91)
Chrome top motor mount to cylinder head bracket mounting
kit feature companion countersunk washers and flat head allen screws. Fits BT 1993-on and XL 1986-on.
9967
5504
Colony Rocker Cover Screws
Evo Rocker Box Screw Kit
Includes chrome allen screws and washers with copper sealing washers.
PCPDescription
8931 Allen screw kit
20500 Sealing washer (6114) (10)
25170 Fibre washer (63858-49) (10)
PCPApplication
5504 XL 883/1100 1986-on acorn
9788 Buttonhead
Colony Lower Rocker Box Mounting Kit
Stock replacement hardware for mounting both lower rocker
boxes on Evo Big Twin and Sportsters.
72078
Head Bolt/Spark Plug Covers For EVO 1986-99
These sets are diecast and chrome plated to cover the head
bolt and spark plug base area. They are held in place by a
rubber grommet which fits over the spark plug and a recess in
the casting fitting over the 12 point head bolt, for a secure fit.
45072 Pair BT 1986-99
Evo Big Twin Lower Rocker Cover Mounting
Hardware
This kit includes all correct bolts, allen screws and washers
necessary for bolting the lower rocker cover to the cylinder
head. Complete set for two heads.
240491984-99
Rocker Box breather Upgrade 1992-99
16326Kit
1-108
www.prestoncycle.com
EVO Cylinder Hardware
Evo Cylinder Head Studs
PCPFits
10816 T/L BT 1985-99 (16837-85C) (ea)
9424 Colony BT 1985-99 (16837-85A) (8 pk)
72083 Colony TC 1999-on (16834-99) (8 pk)
60104 Sifton BT 1984-99 (8 pk)
9507 Colony XL 1986-on (16832-86A) (8 pk)
Chrome Head Screw Set
Set includes 4 long and 4 short head screws. Washers sold
separately.
24000 BT Evo 1983-84 (16478-83, 16480-83)
72232
S&S BT Evo Cylinder Studs 1985-99
60106 8 Pack
312321Each
Kibblewhite Cylinder Studs
•Machined from fine grain, heat treated,
aircraft quality steel
•Centerless ground OD
•Black oxide finish
PCP
Application
UM
32196
All Evolutions
8 pack
BT Evo Inserts
10052 8 piece kit
Headbolt Covers for Evo and Twin Cam
Chrome hex dome headbolt covers hide 12 point headbolts
on all late 1985-on FL, FX, XL. Installs with set screw.
72024 Custom hex dome style
72232 Smooth style
72262 Pike style
Rocker Cover Screw Kit
Chrome plated 12 point screw, washers, and gaskets mount
rocker covers on 1985-on FL,FX and 1986-on XL.
72280
www.prestoncycle.com
1-109
BT Evo Rocker
Custom Evo Rocker Cover Screw Kit
“Tru-Seal” EV Rocker Box Cover Collar and
Screw Kit
Kit includes 8 screws and sealing washers with built-in o-rings
for a positive seal.
24558 Chrome
Chrome kits include flat head allen screws, low profile, companion countersunk washers and gaskets to mount rocker
covers on FL-FX 1985-99 and XL 1986-on.
9833
Headbolt Kits Evo and Twin Cam- 8 Pack
Chrome plated 12 point dome top headbolts.
72011 BT 1985-91, XL 1986-92 (16480-85A, 16478-85A)
72012 BT 1992-on, XL 1993-on (16480-92, 16478-85A)
Colony Rocker Cover Screw Kit
Fits FX, FL 1985-on.
9788
45035
9002
Evo Headbolt Washers
9001
Stock replacement washers for BT L85-91 and XL 1984-91.
72017 Chrome (16482-85) (8 pk)
72018 Cad (8 pk)
9902
Sifton Evo Cylinder Drain Inner Filter
Use this filter to return top end oil. Features a stainless steel
screen and a ceramic magnet that will stop ferrous debris
from valve train wear and is effective at stopping broken valve
spring material from entering engine oiling system through
cylinder drain. The thin wall steel dowel protects the magnet
and provides proper head to cylinder alignment.
17509
1-110
Head Bolt Covers
Fit over 12 point head bolts on 1986-up Evo 883-1100-1200
Sportster and 1985-up 1340 BT Evolution. Evo styles include
4 pieces for left side only.
PCP FinishStyle Model
Year
9000
ChromeAcorn Evo
1986-91
9001
Gold AcornEvo
1986-91
9002
ChromeCap
Evo
1986-91
45035 Chrome Dome
1340 & XL Evo 1986-on
www.prestoncycle.com
XL Evo 1986-On
Andrews Products performance cams are avaiable for all EV
Sportster engines. Many of the cams listed below will run to
6500 RPM with stock hydraulic lifters. Since the stock lifters
are such proven units, we continue to recommend that they
not be changed to solid lifters. For lower lift EV Sportster
cams, stock base circle sizes are used so stock (non-adjustable) pushrods can be used (except V9 or BV). Adjustable
aluminum or chrome-moly-steel pushrods are also available.
Note: the #2 cam drive gears used in 2000-on EV Sportster
cams uses 46 teeth; the 1991-99 #2 cam gear has 36 teeth.
Note: 1991-on Sportster engines are considerably different
than earlier EV Sportsters. Cam gears for earlier EV Sportsters will not fit 1991-on engines. 46T gears will fit 1991-99 #2
cams.
Adjustable Length Pushrods
292020 Aluminum pushrods (set of 4) 1986-90
292090 Chrome-moly steel pushrods (set of 4) 1986-90
292030 Aluminum pushrods (set of 4) 1991-on
292085 Chrome-moly steel pushrods (set of 4) 1991-on
298145
214272
SPORTSTER EVOLUTION ENGINE CAMS
PCP#
Years
Grind
Timing *
CL
Duration
.053
.020
Max
Lift
Lift @
TDC
Application
Stock
1986-90
D
02/41
41/02
109.5
109.5
223
223
270
270
.458
.458
.094
.094
Specifications listed for reference and comparison.
(Note: 1986-1987 exhaust cam lift is .414)
Stock
1991-on
W
10/28
38/16
99
101
218
234
256
272
.474
.474
.122
.138
Late Sportster cam data listed for comparison. Late
cams marked “D”*(1991-on) have same specs as “W”
cams
298120
1986-90
V2
298125
1991-99
N2
298130**
98
104
2000-on
N2
22/38
46/18
240
244
283
290
.465
.440
.180
.155
Bolt-in cam for stock 883, 1100 or 1200 engines.
More duration and lift means extra power thru RPM
range. Stock springs and hydraulic lifters recommended. 2000-6000 RPM.
22/48
43/11
98
106
240
234
278
270
.465
.482
.181
.134
Bolt-in power for 2004-on 883/1200S with stock
springs and heads. Cams for 2004-on heads with
more than .550 lift may need new valves, springs,
collars.
30/46
52/24
98
104
256
256
296
296
.490
.490
.216
.189
Street/drags: Stock or modified 883/1100/1200. Stock
springs, hydraulic lifters are recommended. RPM
range: 2000-6000.
32/44
56/28
96
104
256
264
296
302
.490
.500
.226
.212
Modified 1100-1200, stroked 883’s with stock springs
and hydraulic lifters. Same intake cam as N4: more
exhaust cam duration. Great mid-range power: 20006500 RPM.
34/50
56/28
98
104
264
264
302
302
.500
.500
.241
.212
Modified 1200s to 80”and/or high compression pistons. Stock springs and hydraulic lifters are recommended: RPM range 2500-6800.
33/53
53/33
100
100
266
266
309
309
.555
.555
.240
.240
Cams for stroked engines from 80-88 inches. Broad
torque range to 600+RPM. Andrews’springs,
collars and pushrods are required. 1991-on need
long pushrod.
35/59
59/35
102
102
274
274
316
316
.590
.590
.260
.260
Hi-Lift cams. 88+inches. Andrews’ pushrods, springs,
collars required. BV/NV cams start easy-run strong.
2000-6000+ RPM with hydraulic lifters. 1991-on need
long pushrod.
298135
2004-on
298140
1986-90
V4
298145
1991-99
N4
298150**
2000-on
N4
298180
1986-90
V8
298185
1991-99
N8
298190**
2000-on
N8
298160
1986-90
V6
298165
1991-99
N6
298170**
2000-on
N6
N3
214210
1986-90
V9
214215
1991-99
N9
214219**
2000-on
N9
214265
1986-90
BV
214268
1991-99
NV
214272**
2000-on
NV
(*) Timing and duration listed for .053 Lift figures
(**) 2000-on Sportster engines require a different #2 cam drive gear than 1991-99 engines.
www.prestoncycle.com
1-111
XL Evo 1986-On
PCP OEM Description
Year
1 11521 6508
Flywheel washer .12087-*
1A 18706*8881
Bearing race
87-*
1B 13600 9142-9149 Shim asst. 100-.114 86-*
2 11043 11177A
Retaining ring
87-*
3 10301 11218
Key, crank pin
86-*
5 18705 16573-83 Insert/cyl. stud (2)
86-*
6 79200 16664-86 Head gasket XL883 86-08
79201 16665-86 Head gasket XL1100 86-87
79218 16773-85 Head gasket XL1200 88-08
7 10807 16715-83 Stud, exh. port (4)
86-*
8 25021 16774-86A Gasket cyl. base
86-*
9 10915 16832-86B Stud (8) cyl. base
86-*
9507 16832-86B Stud for cylinder
86-*
10 29006 18011-86 Exh. seat XL 1100
86
29012 18011-87 Exh. seat XL “-1200 87-*
29014 18012-87 Exh. seat XL 883
86-*
29008 18020-83 In. seat XL 1100
86
29015 18020-87 In. seat 1100-1200 87-*
29017 18021-87 In. seat XL 883
86-*
11 11051 22589-83 Retain/ring piston
86-*
12 32352 22719-85 Piston pin 883
86-98
32356 22765-88 Piston pin 1200 88-*
13 12530 23901-81 Nut, crank pin (2)
86-*
14 3412 23960-80A Crank pin STD
86-*
15 34008 24275-86A Connecting Rods
86-99
16 18504 24331-36 Bush/piston pin STD 86-*
18599 24332-36 Bush/piston pin .010 86-*
17 1102 24341-52A Steel rod races
54-86
24352-52A
18 15810 24354-87A Rod bearing set
L86-99
19 10720 24362-54A Alloy rod cages
57-E86
24365-54A
19A15880 24647-87 2nd largest
87-*
bear/pinion/blue
15881 24650-87 Largest “ red 87-*
15882 24659-87 2nd smallest wh/gry 87-*
15883 24660-87 Smallest “ green 87-*
20 18703 24658-86 Bearing race, pinion 86
18704*24658-87 Bearing race, pinion 87-*
21 14538 26432-76A ‘O‘ Rings, stud
86-*
21A14042 35151-74 Sprocket seal
74-99
22 12568 40387-70 Nut, engine shaft
70-88
*Race O.D. 1.2558. Race requires honing.
U/M
Pair
Each
8 Pk
10 Pk
10 Pk
5 Pk
5 Pk
Pair
5 Pk
5 Pk
10 Pk
Each
8Pk
Each
Each
Each
Each
Each
Each
10 Pk
Each
Each
Pair
Each
Set
Pair
Pair
Set
Set
Set
Each
Each
Each
Each
Each
Each
10 Pk
5 Pk
Each
Genuine Torrington Bearing Set XLS 1952-90
15632 4 Piece set
XL Cam Bushing Kit
15407 1986-90
Sportster Oversized Valve Seats
Machining required.
PCP ApplicationValve O.D. I.D. Thickness
31787 883-1200ccExhaust1.630”1.180”.385”
31788 883-1200cc Intake 1.880”1.439” .410”
1-112
www.prestoncycle.com
XL Evo 1986-On
XL Oil Pump Gear Shaft
These USA made oil pumps come complete with all gears as
shown and fit models listed. (natural finish)
30146 1975-90 (26488-75)
30147 1991-97 (26488-91)
30148 1998-06 (26488-98)
Sportster Oil Pump Assembly
Oil pumps come complete and have a natural finish.
29051 1986-90 (26204-86) (USA)
30149 1986-90 (26204-86) (Preston)
29056 1986-90 Body only (26484-86)
29052 1991-on (not for XR1200) (26204-91) (USA)
Hastings Moly Piston Rings (2M6199) XL
1100cc
Colony Motor Case Kit
Hardware has stock zinc finish and fits XL 1977-90.
9879
Sifton Evo XL Piston Oil Supply Squirter
Reduces cylinder temperature and engine damage by cooling
pistons with extra oil supply. Increases horsepower by reducing friction between piston and cylinder wall. Note: Engine
must be unassembled for installation.
73602 2000-on Rear
73603 2000-on Front
XL Timing Plugs
Functional and custom design plug fits all models Harley
Sportster timing plug holes and oil tanks with 5/18-18 drain
hole.
Hex Allen Finish
35919402Chrome
-
9960 Chrome (Oversize)
52829403Cad
5283
-
Black oxide
Fits Sportster EVO 1100cc 1986-87. For 3.350 DIA. pistons.
Sold 1 set for 1 engine.
PCPSize
35226 STD
35227 .005
35228 .010
35229 .020
35230 .030
35231 .040
XL Connecting Rod Set
Kit includes new rods, crank pin, nuts, cages and standard
rollers fitted and assembled. Fits XL 2000-03.
PCPFitment
34012 XL 2000-03
34008 XL 1986-99
347900 XL 1986-99 (S&S Supreme duty)
347800 XL 1986-99 (S&S Heavy Duty)
www.prestoncycle.com
5283
1-113
XL Evo 1986-On
Pinion Bushing
PCPDescription
31376 XL 1977-on STD (25593-
74) Jims
18527 As above, Preston
Sportster Cam Bushings (each)(3 used)
31369
18519
31370
18557
31371
31372
Jims XL 1954-on STD (25586-37)
Preston as above
Jims XL 1954-on .005 (25586-37 +005)
Preston as above
Jims R/Int. XL 1957-90 (25588-57)
Jims R/Int. XL 1957-90 +.005
Rear Intake Cam Bushing XL 1991-on
31373 Sold each (25588-91) (Jims)
18603 As above Eastern
18604 As above +.005 (Jims)
Top Motor Mount to Cylinder Head Bracket
Chrome top motor mount to cylinder head bracket mounting
kit feature companion countersunk washers and flat head allen screws. Fits BT 1993-on and XL 1986-on.
9967
S&S Pinion Shaft Assemblies XL 1986-on
332325
332336
Std size requires 1987-on main bearing. Fits S&S D or DR flywheels only.
+.001 oversize requires 1987-on main bearing. Fits as above.
5503
Colony Stock Acorn Lifter Base Screw Kit
PCPApplication
5503 XL 883/1100 1986-90
9765 XL 1991-94
9766 XL 1995-on
Colony Motor Mount Kit
PCPApplication
5506 Lower XL 883/1100 1986-on chrome acorn
5507 Upper XL 883/1100 1986-on chrome acorn
9774 XL 1991-on chrome allen
72222
24002
Chrome XL Screw Sets
Fits 2004-on XL.
PCP
Fitment
Style
24002
Primary and derby
Allen
72222
Timing cover
Allen
72226
Sprocket cover
Allen
72224
Tappet block
Allen
72280
Rocker box
12 Point
1-114
Chrome Allen Oil Pump
Mounting Kit
• Knurled chrome
PCPApplicationStyle
78817 XL 1977-90
Allen
79774 XL 1991-03
Allen
www.prestoncycle.com
XL Evo 1986-On
XL Chrome Engine Dress Up Kit 1991-03
Features chrome covers to fit over original aluminum covers
which are formed to mirror the contour for a tight fit. Includes
cam cover trim, sprocket cover trim and primary cover trim.
45853
Colony Stock Cam Cover Screw Kit
PCP
5501
9751
Application
XL 883/1100 1986-on
XL 1986-03
Style Chrome acorn
Chrome allen knurled
45809
Custom Dress-Up Kit (Right Side)
Fits right side of XL models 1983-on. Includes chrome steel
cam cover trim, chrome diecast sprocket cover, chrome master cylinder reinforcement bracket and hardware.
45808 Chain XL 1983-90
45809 Belt and chain XL 1991-03
45821 Belt, electric type 2004-on
www.prestoncycle.com
1-115
XL Evo 1986-On
45373
45362
XL Tappet Block Cover
Chromed diecast cover fits
from the pushrod tube base to
the cam cover.
PCPYears
45362 1991-03
453731991-03
Chrome Cam Cover
These form fitting Chrome steel covers fit over stock cam
cases on 1971-on Sportster models.
No need to remove cam case or disturb cams or gears. Covers held in place by existing screws.
45045 1983-90 Sportster
45102 1991-03 XLH
45846 2004-on
XL Chrome Cylinder Base Cover
Provides a smooth, chrome cover for the area below the cylinder base on left side of engine.
PCPYears
45364 2004-on (32729-07)
Chrome Right Side Cam Cover/ Sprocket
Cover Set 1991-on
Covers include gaskets and chrome allen screws for assembly.
90420 1991-03
T/L Sportster Cylinder Base Cover
This cover quickly installs on the left side of a 1991-03 Sportster.
64253 32732-98
44064
XL Chrome and Black Mesh Skull Point Cover
Chrome ignition points cover has skull design cut-out with
black mesh inlay. Features 2 vertical mount holes.
44064 XL 1971-03
44065 XL 2004-on
1-116
www.prestoncycle.com
XL Evo 1986-On
53080
53070
53098
1200cc XL Conversion Cylinder and Piston Set
Set includes 2 silver finished cylinders fitted with Wiseco moly
9.5:1 reverse dome pistons and ring set. Order James rocker
box gasket set separately. Will fit 883 and 1100cc models
1986-03.
53070 Wiseco (silver)
79989 1986-90 Top rocker box gasket kit w/steel base
79990 1991-03 Top rocker box gasket kit w/steel base
79977 1991-03 Top rocker box gasket set w/rubber base
1200cc XL Conversion Cylinder & Piston Set
Set includes 2 silver finished cylinders or black wrinkle with
milled edge fin cylinders. Fitted with Wiseco 10:1 piston and
ring set. Order gaskets separately. Will fit 883 and 1100cc
models.
1986-03
53079 Silver finish
53080 Black finish
2004-on
53098 Silver finish
53099 Black finish
S&S XL 1200cc Stock Replacement Cylinders
Stock 3½” replacement cylinder sets are offered in a natural
aluminum finish. The bore is slightly undersized so standard
piston can be fitted with minimal honing. Additional fin surface
improves heat dissipation. Made with stock oil return passages for a simple stock-like installation.
913010 Stock length (4.650”) Sportster 1986-03
3-1/2 Bore Piston Kit XL 883 to 1200 1986-90
3-1/2” Bore Piston Kits is an easy and economical way of
increasing the displacement and performance of the Evolution Sportster engine. By simply boring out the stock cylinders
and refitting them with a set of our special pistons, a 1202
cc engine can be made. This is a gain of 319cc over stock
for an 883 or 102 ccs for an 1100. Kit includes 2 pistons with
rings, wrist pins and wrist pin locks and gaskets. Fits 1986-87
XL1100 and 1986-88 XL 883. Important: XL 883 models REQUIRE EXTENSIVE HEAD WORK.
PCPItem
6649 Complete top end kit
25618 Gasket update kit for 1990-03 XL
www.prestoncycle.com
1-117
XL Evo 1986-On
XL Evo Cylinders 1986-on
Sold each and are not honed for final fit. Cylinders are sold
without pistons except PCP 65211 and 65213 which include
piston, rings and wrist pin. All other items cylinders only.
PCP ApplicationFinish
34813 883 1986-99 Silver, (16446-86B)
65213 1200 1988-03 Blk/wrinkle cylinder kit (16447-88A)
34819 1200 1988-03 Black wrinkle
34816 1200 1988-03 Silver (needs honing)
34814 1200 1988-03 Silver (16447-88) (finish bore 88.82mm)
34817 1200 2004-on Silver
34818 1200 2004-on Black wrinkle
Topline EVO XL 1200cc Cylinders 1986-03
Use two of these cylinders to convert an 883cc or 1100cc
to a 1200cc race application. No cylinder head machining is
required when using with Sreamin’ Eagle cylinder heads, or
883/1200 converion piston kit. The only adjustment needed
is to relieve the combustion chamber for proper combustion
ratio. Cylinders are sold each and 2 are required to complete
the conversion. Fits XL 883/1100 when used with XL 1200
pistons.
PCPFinish
65523 Silver (16554-92A)
Wiseco XL 883 to 1200 Piston Kit 1986-09
Cylinder Base Stud Set
Alloy steel studs are heat treated with interference threads.
9507 XL Evo 1986-on (16832-86A) (8 pack)
This kit offers 8.5:1 compression and 3.812” stroke with no
cylinder head modification required. Top ring is .062”, 2nd
ring is .062” and oil ring is .158”. Fits Evo 883 XL overbore to
1200cc (73 cu. in.). Kit includes forged reverse dome pistons,
rings, circlips and chrome wrist pins. Skirt coated pistons
have a dome volume of -13.7cc. Order gaskets seperately.
PCP
CC Displ.
Bore
Stroke
35845
1200cc
STD (3.498”)
3.812”
Valve pocket dimensions are measured from deck height:
Intake/Exhaust Pocket: Depth: -215”
Diameter: 2.100”
S&S Forged 883cc to 1200cc Conversion Pistons for 1986-03 H-D Sportster Models with Stock Cylinder Heads
883cc to 1200cc Conversion kit does not require rebalancing of stock 883cc fly wheel assembly. Piston kits include a set of pistons, rings,
wristpins and clips.
Displacement
Bore
Stroke
CR
1200cc
3½”
3-13/16”
9.4:1
Recommended piston fit:
1-118
Forged Piston Kits
Close: 0.0025”-0.0030”
Moly Ring Sets
Standard
+.010”
+.020”
Standard
+.010”
+.020”
1065548
1065549
1065550
942216
942217
942218
Loose: 0.0035”-0.0045”
www.prestoncycle.com
XL Evo 1986-On
1200cc XL Cylinder and Piston Kit
Cylinder kit includes fitted Wiseco 9:1 piston and ring set. To
be used with 1200cc heads only. Kit includes 2 head and 2
base gaskets. Fits XL 1988-03.
PCPFinish
53056 Black
53075Silver
1200cc XL Cylinder and Piston Conversion Kit
XL Cylinder Kits
Kits are prefitted with cast 9:1 pistons and Hastings rings
PCP Size FitmentFinish
53186 883cc1986-03Silver
53187 1200cc1988-03 Silver
53188 1200cc 1988-03 Black
S&S 3-9/16” Cylinder & Piston Kits XL 86-15
Kits include cylinders, forged flat top pistons, head, base and
exhaust gaskets. Cylinders are honed to fit included pistons.
Fits 1986-15 883cc and1200cc XL models.
CC Displ.
Bore
Stroke
CR
Cyl. Length
1250cc
3-9/16”
3-13/16”
10.3:1
4.650”
Deck height: 1.208”
PCPFinish
9100433 Silver
9100443 Black wrinkle
Kit includes 2 cylinders with milled edge fins, fitted Wiseco
moly 9.5:1 reverse dome piston and ring set. Also includes 2
head and 2 base gaskets.
PCP FinishFitment
53071 Black XL 1986-03
53077 Silver XL 2004-on
53078 Black XL 2004-on
S&S Bolt-On XL Cylinder and Piston Kit 86-15
Boost any 883cc Sportster to 1200cc without machining or
rebalancing. No cylinder machining is required. Dished dome
pistons are the same weight as stock 883 pistons and offer
9.6:1 CR with stock 883cc heads. Kits include an S&S 8831200 conversion piston kit, 3-½” bore cylinders and cylinder
head, base and exhaust gaskets. Powdercoat finish. For use
on 1986-2015 XL 883cc models.
3-½” Bore, 4.650”, 3-13/16” Stroke.
PCPFinish
9100296 Black wrinkle
9100301 Silver www.prestoncycle.com
1-119
XL Evo 1986-On
S&S Adjustable Pushrod
Conversion Kit
Andrews XL Adjustable Length Pushrods
PCPDescription
292020
4 aluminum pushrods 1986-90
292090
4 chrome-moly steel rods 1986-90
292030
4 aluminum pushrods 1991-03
292085
4 chrome-moly steel rods 1991-03
292095
Evolution kit includes 7/16” O.D. adjustable
type chrome moly steel pushrods. These
pushrods can be used in place of stock non
adjustable type with hydraulic lifters or with
solid lifters in any application.
PCPApplication
935033 XL 1986-90
935021 As above + 5/16”
935024 As above + 1.010”
935025 As above + 1.100”
935022 XL 1991-14
935085 As above + 5/16”
935089 As above + 7/16”
935086 As above +.915”
935088 As above + 1.100”
Andrews Fixed Length Pushrods 1991-on
292025 Aluminum pushrods (set of 4) 1991-on
292095 Chrome-moly steel pushrods (set of 4) 1991-on
Note: All 1991-on EV Sportster engines require non-adjustable pushrods.
S&S XL Standard Adjustable Pushrod Set
Rigid 7/16” chromoly steel pushrods have threaded adjusters.
Compatible with solid or hydraulic lifters but early style collapsible pushrod covers must be used to allow access to the
adjusters. Adjustable to ensure accurate valve train operation
under various conditions. Rocker covers must be removed for
installation or removal. Kits include pushrods, covers, keepers
and o-rings.
PCPApplication
9300024 Complete kit 2004-15
935022 Pushrods only 1991-14
Sifton Hydraulic Tappet Kit
Includes roller tappets and adjustable pushrod set.
PCPYear
30159 1986-90
30160 1991-99
30161 2000-on
S&S XL Quickee Pushrod Set
Sifton Quick Install XL Pushrod Set
Can be installed without the removal of rocker boxes or cylinder heads. Precision made from 4130 chrome moly tubing.
30083 XL 1991-03
1-120
Quickee pushrods fit 1991-14 Harley-Davidson® Sportster®
models. Installation does not require removal of the gas tank,
rocker assemblies, or even the rocker box cover! OEM pushrods may be cut for removal without rocker disassembly. The
threaded adjuster screws into the pushrod until the threads
disengage and the adjuster simply slides into the pushrod,
making installation or removal a snap. Once the pushrod is
installed and adjusted, the locknut prevents the adjuster from
moving. Works with stock pushrod covers and adjustable to
work with all stock and aftermarket cams.
PCPApplication
9300023 Complete kit 1991-14
935122 Pushrods only 1991-15
www.prestoncycle.com
XL EVO 1986-On
Pushrod Cover Kit
Complete kit includes upper, lower and inner pushrod covers
to convert your 2004-on Sportster to early style removable
pushrod covers.
72253
XL Chrome Pushrod Cover Kit
Includes all pieces and seals.
34110 XL 1991-03
Colony Pushrod Cover Adaptor Kit
Adapts 1990-on Sportster lifter base to use the early style removable pushrod covers. Complete kit includes upper, lower,
inner and adaptors.
72140
XL Billet Pushrod Cover and Mount Base Kit
Allows adjustable covers to be used on 1991-03 Sportster.
59479 Kit
14082 Seal kit for mount base
Pushrod Cover Conversion Kit
Complete kit includes upper, lower and inner pushrod covers
to convert your 1991-2003 XL to the early style removable
pushrod covers. Use PCP# 72254 adapter kit.
72255
T/L Chrome XL Lifter Covers 2004-07
High lustre polished chrome covers fit XL models.
61099 17994-04
XL Collapsable Pushrod Cover Set
Allow for ease of pushrod change or adjustment.
21836 2004-on
www.prestoncycle.com
1-121
XL Evo 1986-On
Sportster Upper Pushrod Cover Kits 1986-90
Each kit contains 4 chrome plated retaining clips, 4 chrome
plated cups, 4 springs, 4 cork gaskets and 4 steel washers.
9887 With chrome plated outers (2-13/16 clips)
Complete Pushrod Cover Kit
All parts from top to bottom fit all V-Twin engines. Visible
parts are all chrome and each kit includes upper covers, inner
cover and lower covers.
PCPApplication
34108 All Evo XL 1985-89
34109 XL 1200, 1 piece design 1990-03
34110 As above, 16 piece design 1990-03
Pushrod Cover Adaptor Set
Use to adapt XL1985-89 models to 1990-03.
335360 S&S XL
34105 Colony
Chrome XL Tappet Block Cover Set
Fits 2004-on XL. Replaces 17994-04. Pair.
30174 Cover set
72224 Screw set
Pushrod Cover Conversion Adaptor Kit
These adaptors eliminate the need to remove the cylinder
heads to access the pushrods by allowing installation of the
early style removable pushrod covers and easy installation
of adjustable pushrods. Fits 1991-2003 Sportster. Use with
Colony’s complete pushrod cover kit PCP# 72255 .
72254
Chromed Aluminum Alloy Tappet Block Set
Machined, stock type four piece tappet block set includes
front and rear exhaust, as well as front and rear intake. Fits
XL 1986-90. Replaces 18617-86.
30170
Chrome XL Allen Lifter Base Screws
PCPFitment
9759 1991-94 XL
9760 1995-03 XL
72224 2004-on XL
1-122
www.prestoncycle.com
XL EVO Tappets
Jims XL and Buell 1991-on Solid Tappets
Clearanced for about .700 lift. Use with adjustable pushrods.
(123 grams)
Big Axle Size (STD O.D. .9035)
31631
STD
S&S Tappets
These tappets are a good choice for any stock or high performance application. Set of 4. S&S tappets with HL2T kits
require the use of adjustable pushrods.
PCP
YearsType
335352 86-90 Standard w/o HL2T kit
335353 86-90 Standard tappets with HL2T kit
3300288 91-99 Standard w/o HL2T kit
335350 00-13 Standard w/o HL2T kit
335351 00-13 High performance with HL2T kit
3300174 00-15 Premium with HL2T kit
3300175 00-15 Premium, no HL2T kit
Jims Billet Steel Power Glide Hydraulic Tappet
XL 1991-99 (18526-PG)
Clearanced for about .700 lift. (143 grams)
Big Axle Size
31639
STD
V-Thunder Hydraulic Evolution Tappets
• Anti-pump up race retainer limits travel of the plunger
• Couples higher RPMs with quiet, precise hydraulic operation
• Sold each
30173
Jims Hydrosolid Tappet
This tappet performs like a hydraulic tappet from start up to
about 5500 rpm and then turns into a solid from 5600 rpm
on. When solid it adds 3-6 more useable horsepower. When
springs start to surge the tappet rollers start lofting off the
back side of the cam and will not pump up allowing your
valves to hit. Must use adjustable pushrods.
PCPApplication
31644 BT 1984-99, XL 1986-90 OD .8425”
31645 As above +.002”
Jims Power Glide Hydraulic Evo 1984-99 and
XL 1986-90 (18523-86)
STD O.D. .8425. (149 grams)
Big Axle
31625
31626
31627
Size
STD
.002
.005
www.prestoncycle.com
1-123
XL Evo 1986-On
Andrews High Lift Evolution Springs
Used with titanium spring collars, cam lifts of .550+ can easily
be accomodated. Installation does not require machining of
heads.
294150 (4 inner and 4 outer springs)
Rowe Machined Sportster EVO Valves
High flow, forged one piece valves made from 21-4N stainless
steel. Precision CNC machined with black melonite heat treating process (nitride) or machined chrome. Sold each.
Evo 883 1986-2003
Head Diam.
PCP RoweApplication + .005
32243 710-13 Intake black
1.585
32244* 710-23 Intake 883-1200 conversion
1.715
*Note: Conversion valves for 1986-03 have .130 larger heads
and .017 shorter stems
Standard Valves-Forged
Model
Sportster 1986-on 883CC
IntakeExhaust
3219732198
(18031-86)(18030-86)
EVO 883 2004-on (7mm)
32265 712-13 Intake black
32266 713-13 Exhaust black
1.585
1.350
EVO 1200 1987-2003
32260 702-13 Intake black
32261 703-13 Exhaust black
1.715
1.478
EVO 1200 2004-11
32267 704-13 Intake black
32268 705-13 Exhaust black
1.585
1.350
AV&V Sportster Extreme Duty Replacement Valves
PCP#
Type
Head
Diam.
Overall
Length
Stem
Diam.
Coating
Model
AV&V #
31807
Exhaust
1.355
4.635”
.3106”
Black
883 Sportster (5/16 stem)
AV1355
31808
Intake
1.590”
4.550”
.3108”
Black
883 Sportster (5/16 stem)
AV1590
31809
Exhaust
1.485”
4.560”
.3106”
Black
1200 Sportster (5/16 stem)
AV1485
31800
Intake
1.720”
4.480”
.3108”
Black
1200 Sportster (5/16 stem)
AV1720B
31810
Exhaust
1.575”
4.620”
.2755”
Black
1200 Sportster (7mm)
AV1576-7TGB
31811
Intake
1.810”
4.480”
.2757”
Black
1200 Sportster (7mm)
AV1811-7TGB
31799*
Exhaust
1.480”
4.640”
.3106”
Black
883 to 1200 Sportster Coversion (5/16 stem)
AV1480
31817*
Intake
1.720”
4.560”
.3108”
Black
883 to 1200 Sportster Coversion (5/16 stem)
AV1720
*Note: Seats must be machined deeper and their I.D. must be enlarged to accept these valves
1-124
www.prestoncycle.com
XL Valve Train
Kibblewhite XL 1200 2004-14, Buell XB9 2003-07
Valve Guides
Shouldered guide uses OEM or Kibblewhite
style seals. 7.0mm I.D.
Performance Rebuild Ovate Wire Beehive
Spring Kits-XL 1200 2004-14
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits “Beehive”
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32293
.600”
160-170 lb.
370 lb. @ .600”
Steel
32294
.630”
180-190 lb.
375 lb. @ .630”
Steel
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
0.800”
F
0.2750”
Intake-G
(Std. 0.5620”)
Retainers
C630 Bronze
PCP
*32294 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit “Std Springs”
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32295
.600”
170-180 lb.
375-385 lb. @ .600”
Steel
32296
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
Retainers
Cast Iron
Size
PCP
Size
32300
Std.
32308
Std.
32301
+0.001”
32309
+0.001”
32302
+0.002”
32310
+0.002”
32303
+0.010”
32312
+0.010”
Black Diamond Valves
For Sportster 1200cc 2004-14 & XB9 2003-07
•Black Nitroneg stems
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32322
IN
1.805”/45.85mm
0.2760”
28°
4.525”
Standard
32323
IN
1.900”/48.26mm
0.2760”
28°
4.500”
Oversize
32324
EX
1.575”/40.00mm
0.2755”
34°
4.610”
Standard
32325
EX
1.615”/41.02mm
0.2755”
34°
4.590”
Oversize
32090
IN/EX, Style 3, Tophat
D
1.280”
0.740”
E
0.615”
C
1.030”
F
0.2750”
Exhaust-G
(Std. 0.5620”)
C630 Bronze
Cast Iron
PCP
Size
PCP
Size
Std.
32318
Std.
32305
+0.001”
32319
+0.001”
Guide Ø
32306
+0.002”
32320
+0.002”
0.565”
32307
+0.010”
32321
+0.010”
•OEM style, sold each.
Type
0.690”
B
32304
7mm Valve Guide Seals
PCP
A
www.prestoncycle.com
1-125
XL Valve Train
32158
32156
Kibblewhite Evo XL 883 & 1200 1986-03
Valve Guides
Shouldered guide w/Viton Seal
Shortened for .600” Lift
Kibblewhite Ovate Wire Beehive Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits “Beehive”
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32154
.600”
160-170 lb.
370 lb. @ .600”
Steel
32155
.630”
180-190 lb.
370 lb. @ .630”
Steel
32156
.550”
150-160 lb.
32157
.550”
150-160 lb.
1.400”
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
PCP
Size
32162
Std.
32163
+0.001”
32164
+0.002”
Retainers
32165
+0.004”
380 lb. @ .550”
Titanium
32166
+0.010”
380 lb. @ .550”
Steel
Includes springs, retainers, keepers, collars and spring shims.
Seat Pressure
D
Intake-G (Std. 0.5620”)
C630 Bronze
Lightweight Racing Valve Spring Kit “Std Springs”
Lift
0.650”
Retainers
*32155 Not recommended for lifts over .630”
PCP
A
Lightweight Racing Valve Spring Kit “Std Springs”
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32158
.600”
170-180 lb.
380 lb. @ .600”
32159
.600”
170-180 lb.
380 lb. @ .600”
Steel
32160
.655”
185-195 lb.
450-460 lb. @ .655”
Titanium
32161
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
Retainers
Titanium
32289
A
0.650”
D
1.450”
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
Exhaust-G (Std. 0.5620”)
C630 Bronze
Black Diamond Valves For 1986-03 Sportster 883cc
•Black Nitroneg stems
PCP
32289
32290
Type
IN
EX
Head Diam.
1.585”/40.26mm
1.350”/34.29mm
Stem
Diam.
Tulip
0.3100”
23°
0.3095”
17°
OL
Remarks
4.550”
Standard
(OEM 18031-86)
4.640”
Standard
(OEM 18030-86)
PCP
Size
32167
Std.
32168
+0.001”
32169
+0.002”
32170
+0.004”
32171
+0.010”
Black Diamond Valves
Special Conversion Valves for 883cc/1200cc 1986-03
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32291
IN
1.715”/43.56mm
0.3100”
23°
4.550”
Conversion Valve
32292
EX
1.480”/37.59mm
0.3096”
40°
4.625”
Conversion Valve
Powdered Metal Valve Seats
•Recommended for Evo’s
•Compatible with leaded and unleaded fuels
including methanol and ethanol fuel blends
•Excellent thermal characteristics
Recommended Valve Guide Seals-4 Pack
PCP
Type of Seal
Guide Top Diam.
A
PCP
+/-.0002
+/-.0005
B
+/-.0005
C
Type
32366
1.9690”
1.535”
0.453”
IN
32256
IN/EX, style 5, Steel clad Viton
0.420”
32367
2.0070”
1.562”
0.450”
IN
32259*
IN/EX, style 6, Solid White PC style seal
0.415”
32369
2.1320”
1.690”
0.450”
IN
32365
1.7570”
1.375”
0.450”
EX
*May require use of seal cutter
1-126
www.prestoncycle.com
XL Valve Train
Kibblewhite Sportster 883 & 1200 1986-03
Valve Guides
OEM Style - .420” Top
OEM Style Replacement Seals
PCP
Guide Ø
Stem Ø
UM
32199
0.420”
0.3125”
4 pack
A
0.375”
D
B
0.375”
E
C
1.700”
F
•For OEM style replacement seals
UM
32211
Each
32213
0.3098”
C630 Bronze
Installation Protectors
PCP
Shouldered guide - .420” Top
Shortened for .600” Lift
Intake/Exhaust-G
(Std. 0.5620”)
Seal Installation Tools
PCP
Valve Guides
2.025”
Stem Diam.
UM
0.3125”
Pair
Cast Iron
PCP
Size
PCP
Size
32237
Std.
32283
Std.
32238
+0.001”
32284
+0.001”
32239
+0.002”
32285
+0.002”
32240
+0.003”
32286
+0.003”
32241
+0.004”
32287
+0.004”
32242
+0.010”
32288
+0.010”
A
0.650”
D
1.400”
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
Intake-G
(Std. 0.5620”)
C630 Bronze
Cast Iron
PCP
Size
PCP
Size
32183
Std.
32247
Std.
32184
+0.001”
32248
+0.001”
•OEM style
32185
+0.002”
32249
+0.002”
PCP
UM
32187
+0.003”
32250
+0.003”
32218
8 pack
32188
+0.004”
32251
+0.004”
32189
+0.010”
32252
+0.010”
Replacement Keeper Set
High Performance Wrist Pin Bushing
•Machined from solid nickel bronze alloy
•Exceptional Rockwell hardness
PCP
32049
UM
Each
Engine Builder Wrist Pin Bushing
•Machined from fine grain, heat treated,
aircraft quality steel
•Centerless ground OD
•Black oxide finish
32235
Std. O.D.
•SAE660 bearing bronze construction
Cylinder Studs
PCP
Application
Application
UM
1986-11
PCP
Application
UM
32050
Std. O.D.
Pair
32051
+0.002” O.D.
Pair
A
0.650”
D
1.450”
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
8 pack
Exhaust-G
(Std. 0.5620”)
C630 Bronze
Rocker Arm Bushings
•Constructed of SAE660 bearing bronze bar
stock. Sold in pack of 8.
PCP
Cylinder Dowels
32233
•All Evolution models
PCP
32332
O.D.
0.5575”
Application
1986-11
Cast Iron
PCP
Size
PCP
Size
32190
Std.
32277
Std.
32191
+0.001”
32278
+0.001”
32192
+0.002”
32279
+0.002”
OD
32193
+0.003”
32280
+0.003”
0.6795”
32194
+0.004”
32281
+0.004”
32195
+0.010”
32282
+0.010”
UM
4 pack
www.prestoncycle.com
1-127
XL Valve Train
Kibblewhite Evo Sportster 883cc 2004-14 and 883cc to 1200cc Conversion 2004-14
Valve Guides
Shouldered guide uses OEM or Kibblewhite
style seals. 7.0mm I.D.
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
0.800”
F
0.2750”
Intake-Guide
(Std. 0.5620”)
C630 Bronze
PCP
Performance Rebuild Ovate Wire Beehive
Spring Kits
Cast Iron
Size
PCP
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Size
32300
Std.
32308
Std.
32301
+0.001”
32309
+0.001”
32302
+0.002”
32310
+0.002”
32303
+0.010”
32312
+0.010”
Performance Rebuild Valve Spring Kits “Beehive”
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32293
.600”
160-170 lb.
370 lb. @ .600”
Steel
32294
.630”
180-190 lb.
375 lb. @ .630”
Steel
Retainers
*32155 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit “Std Springs”
Includes springs, retainers, keepers, and lower collars.
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
1.030”
F
0.2750”
PCP
Lift
Seat Pressure
32295
.600”
170-180 lb.
375-385 lb. @ .600”
Steel
32296
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
Retainers
Exhaust-Guide
(Std. 0.5620”)
C630 Bronze
Cast Iron
PCP
Size
PCP
Size
32304
Std.
32318
Std.
32305
+0.001”
32319
+0.001”
32306
+0.002”
32320
+0.002”
32307
+0.010”
32321
+0.010”
Black Diamond Valves
Special Conversion Valves for 883cc to 1200cc 2004-11
•Black Nitroneg stems
7mm Valve Guide Seals
PCP
•OEM style, sold each.
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
PCP
Type
Guide Ø
32297
IN
1.715”/43.56mm
0.2755”
23°
4.580”
Conversion Valve
32090
IN/EX, Style 3, Tophat
0.565”
32298
EX
1.480”/37.59mm
0.2755”
40°
4.660”
Conversion Valve
1-128
www.prestoncycle.com
XL Valve Train
Kibblewhite Sportster 883/1200cc 1988-03 & 1100cc 1986-87
32158
32156
Valve Guides
Shouldered guide w/Viton Seal
Shortened for .600” Lift
Performance Rebuild Ovate Wire Beehive
Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon
based wire that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits “Beehive”
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32154
.600”
160-170 lb.
370 lb. @ .600”
Steel
32155
.630”
180-190 lb.
370 lb. @ .630”
Steel
Retainers
*32155 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit “Std Springs”
Lift
Seat Pressure
32156
.550”
150-160 lb.
380 lb. @ .550”
Titanium
32157
.550”
150-160 lb.
380 lb. @ .550”
Steel
Retainers
Lightweight Racing Valve Spring Kit “Std Springs”
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32158
.600”
170-180 lb.
380 lb. @ .600”
Titanium
32159
.600”
170-180 lb.
380 lb. @ .600”
Steel
32160
.655”
185-195 lb.
450-460 lb. @ .655”
Titanium
32161
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
0.650”
D
1.400”
B
0.700”
E
0.615”
C
0.800”
F
0.3098”
Intake-Guide (Std. 0.5620”)
C630 Bronze
Includes springs, retainers, keepers, collars and spring shims.
PCP
A
Retainers
PCP
Size
32162
Std.
32163
+0.001”
32164
+0.002”
32165
+0.004”
32166
+0.010”
Black Diamond Valves
For Sportster 1200cc 1988-03 & 1100cc 1987
•Black Nitroneg stems
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32315
IN
1.715”/43.56mm
0.3100”
23°
4.480”
Standard
(OEM 18023-87)
32316
EX
1.480”/37.59mm
0.3096”
40°
4.660”
Standard
(OEM 18024-87)
Recommended Valve Guide Seals-4 Pack
PCP
Type of Seal
A
0.650”
D
1.450”
B
0.700”
E
0.615”
C
1.150”
F
0.3098”
Exhaust-Guide
(Std. 0.5620”)
C630 Bronze
PCP
Size
32167
Std.
32168
+0.001”
Guide Top Diam.
32169
+0.002”
32256
IN/EX, style 5, Steel clad Viton
0.420”
32170
+0.004”
32259*
IN/EX, style 6, Solid White PC style Seal
0.415”
32171
+0.010”
*May require use of seal cutter
www.prestoncycle.com
1-129
XL Valve Train
Kibblewhite Evo Sportster 1200cc 1988-03 &
1100cc 1986-87
Valve Guides
OEM Style - .420” Top
Valve Guides
Shouldered guide - .420” Top
Shortened for .600” Lift
Seal Installation Tools
•For OEM style replacement seals
A
0.375”
D
2.025”
B
0.375”
E
-
C
1.700”
F
PCP
Intake/Exhaust-G
(Std. 0.5620”)
32213
Cast Iron
PCP
Size
PCP
Size
32237
Std.
32283
Std.
A
0.650”
D
1.400”
B
0.700”
E
0.615”
32238
+0.001”
32284
+0.001”
C
0.800”
F
0.3098”
32239
+0.002”
32285
+0.002”
32240
+0.003”
32286
+0.003”
32241
+0.004”
32287
+0.004”
32242
+0.010”
32288
+0.010”
Intake-G
(Std. 0.5620”)
C630 Bronze
PCP
Cast Iron
Size
PCP
32183
Std.
32247
Std.
32184
+0.001”
32248
+0.001”
32185
+0.002”
32249
+0.002”
32187
+0.003”
32250
+0.003”
32188
+0.004”
32251
+0.004”
32189
+0.010”
32252
+0.010”
UM
Each
Installation Protectors
0.3098”
C630 Bronze
PCP
32211
Stem Diam.
UM
0.3125”
Pair
OEM Style Replacement Seals
PCP
Guide Ø
Stem Ø
UM
32199
0.420”
0.3125”
4 pack
Size
Rocker Arm Bushings
•Constructed of SAE660 bearing bronze bar
stock. Sold in pack of 8.
PCP
32233
Application
OD
1957-11
0.6795”
High Performance Wrist Pin Bushing
•Machined from solid nickel bronze alloy
•Exceptional Rockwell hardness
PCP
32049
Application
Std. O.D.
UM
Each
Engine Builder Wrist Pin Bushing
•SAE660 bearing bronze construction
Application
UM
0.615”
32050
Std. O.D.
Pair
0.3098”
32051
+0.002” O.D.
Pair
A
0.650”
D
1.450”
B
0.700”
E
C
1.150”
F
PCP
Cylinder Dowels
•All Evolution models
PCP
32332
O.D.
0.5575”
UM
4 pack
Exhaust-G
(Std. 0.5620”)
C630 Bronze
Cast Iron
PCP
Size
PCP
Size
32190
Std.
32277
Std.
32191
+0.001”
32278
+0.001”
32192
+0.002”
32279
+0.002”
32193
+0.003”
32280
+0.003”
32194
+0.004”
32281
+0.004”
32195
+0.010”
32282
+0.010”
1-130
Replacement Keeper Set
•OEM style
PCP
UM
32218
8 pack
Cylinder Studs
•Machined from fine grain, heat treated,
aircraft quality steel
•Centerless ground OD
•Black oxide finish
PCP
32235
www.prestoncycle.com
Application
1986-11
UM
8 pack
XL Valve Train
Kibblewhite Evo Sportster 1200cc 2004-14
Valve Guides
Shouldered guide uses OEM or Kibblewhite
style seals. 7.0mm I.D.
Performance Rebuild Ovate Wire Beehive Spring Kits
•progressively wound using Kobe Super-Clean chrome silicon based wire
that is heat treated and shot peened
•Hardened steel or titanium Posi-Loc style retainers
•Hardened steel collars
•Offer optimum performance and durability
Performance Rebuild Valve Spring Kits
Includes springs, retainers and lower collars.
PCP
Lift
Seat Pressure
32293
.600”
160-170 lb.
370 lb. @ .600”
Steel
32294
.630”
180-190 lb.
375 lb. @ .630”
Steel
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
0.800”
F
0.2750”
Intake-G
(Std. 0.5620”)
Retainers
C630 Bronze
PCP
Size
PCP
Size
32300
Std.
32308
Std.
32301
+0.001”
32309
+0.001”
32302
+0.002”
32310
+0.002”
32303
+0.010”
32312
+0.010”
*32294 Not recommended for lifts over .630”
Lightweight Racing Valve Spring Kit
Includes springs, retainers, keepers, and lower collars.
PCP
Lift
Seat Pressure
32295
.600”
170-180 lb.
375-385 lb. @ .600”
Steel
32296
.655”
185-195 lb.
450-460 lb. @ .655”
Steel
Retainers
Cast Iron
A
0.690”
D
1.280”
B
0.740”
E
0.615”
C
1.030”
F
0.2750”
Exhaust-G
(Std. 0.5620”)
C630 Bronze
PCP
Black Diamond Valves
•Black Nitroneg stems
For Sportster 1200cc 2004-14
PCP
Type
Head Diam.
Stem
Diam.
Tulip
OL
Remarks
32322
IN
1.805”/45.85mm
0.2760”
28°
4.525”
Standard
32323
IN
1.900”/48.26mm
0.2760”
28°
4.500”
Oversize
32324
EX
1.575”/40.00mm
0.2755”
34°
4.610”
Standard
32325
EX
1.615”/41.02mm
0.2755”
34°
4.590”
Oversize
www.prestoncycle.com
Cast Iron
Size
PCP
Size
32304
Std.
32318
Std.
32305
+0.001”
32319
+0.001”
32306
+0.002”
32320
+0.002”
32307
+0.010”
32321
+0.010”
1-131
XL Evo
S&S Standard Forged and Roller Rocker Arms
Forged steel for maximum strength. Roller tip reduces side
thrusting on valve stem in high lift applications and .750”
bushings provide 50% more load bearing area than stock.
Recommended for cams of .585” lift or more. Fits evolution
BT, XL and all TC engines.
PCPItem
Ratio
9004065 Roller arm set 1.625:1
9004098 Roller arm set 1.725:1
9004119 Standard forged 8620 steel arm set
31198
Jim’s rocker arm shaft (each)
Preston’s BT Evo Rocker Arm and Shaft Kit
Fits BT 1984-on and XL 1986-on models. Kit includes 2
(17375-83) rocker arms, 2 (17360-83) rocker arms and 4
(17611-83) shafts.
32333 Kit
30058 F/Int and R/Exh rocker arm (17360-83)
30059 R/Int and F/Exh rocker arm (17375-83)
30300 Shaft only, Preston (17611-83)
31198 As above, Jims
*Adjustable pushrods must be used w/roller arms to obtain
proper valve clearance
S&S .640” Triple Lift Valve Spring Kits
Jims Roller Rocker Arms
Precision, American made rocker roller arms are investment
cast from purified, aircraft quality, 4340 chrome moly steel.
Both stock and aftermarket rocker arms were analysed to determine a baseline for the design: 660 bronze bushings were
retained and a bearing grade steel roller tip was integrated
into the design. Rocker arms feature a segmented parabolic
pushrod cup that reduces friction, wear, and improves roller
tip oiling. Stock ratio of 1.625 will easily accomodate a .700”
lift cam (at the valves). Replaces 17360-83 and 17375-83.
Set of 4.
31251 BT 1984-on, XL 1986-03
31100
31102
Jims Rocker Arm Bushing (Must be Reamed)
31100 17428-57
31102 17428-83K
1-132
Kits fit stock style and S&S Super Stock Heads. O.D. of outer
spring fits within stock spring compartment. Used with “no
shoulder” style valve guides and special keepers fit stock
5/16” diameter stemmed valves and S&S collars only (these
guides can be retrofitted to early BT V2 heads equipped with
“shoulder” style valve guides). Features patented steel top
collars specially drilled to lighten and allow oil to cool springs.
Includes 4 of .015” and 4 of .030” shims. Kits are good for up
to .640 lift
902077 Kit with steel top collars 1986-03
902078 Kit with titanium top collars 1986-03
9000420 Kit with steel collars 2004-13 7mm
Stock replacement BT 66-on,
XL 57-on (8 pack)
Jims roller rocker bushings less mill slot not to be used on Shovels or Ironhead XL I.D. .555” (8 pack)
Kibblewhite Rocker Arm Bushings
•Constructed of SAE660 bearing bronze bar stock
PCP
Application
UM
32233
O.D.-0.6795”
8 pack
www.prestoncycle.com
XL Evo 1986-On
Topline Chrome Sportster Rocker Covers
PCPDescription
64235 Cover spacer XLH 91-03 (17538-96)
64236 Outer rocker cover XLH 1986-03 (17551-96)
Sportster Chrome Rocker Cover Kits
8931
Die-cast aluminum covers include gaskets and hardware.
45894 1986-90 2 heads
45895 1991-03 1 head
45896 1991-03 2 heads
45903 2004-06 2 heads
45914 2007-on XLS 2 heads, includes gaskets
45900
9788
5504
XL Chrome Rocker Cover Screw Kits
Fits 1986-on
PCPType
5504 Acorn
8931 Allen
9788 Button head allen
45898
45902
Chrome XL EVO Rocker Cover Parts
Tops include allen screws and gaskets.
PCPApplication
45900 Top set 1986-03 (17501-86)
45898 Top cover & D-Ring kit 1986-90
45899 As above 1991-03
45902 Top covers only 2004-on (17551-04)
45904 Top cover & D-Ring kit 2004-on
XL Chrome Rocker Box Cover Set
Covers fit over rocker box assembly without disassembly of
engine. Includes chrome allen screws.
45708 1986-03
www.prestoncycle.com
1-133
XL EVO 1986-On
Chrome Snap Caps Bolt Cap Cover Kits
These bolt cover kits make any bike look great and are also
great for custom builders. Beatifully designed and chromed,
these caps easily install over the raw OE bolt heads on
engine, transmission, primary and more. Each kit includes
individually marked pieces that make identification and installation a breeze.
Model
XL
Year
PCP
Kit Qty.
2004-on
21914
77
1984-03
21915
74
2004-on Engine
21916
63
Chrome Polished Allen Motor Show Bike Kits
Complete motor kit includes everything needed to
mount the following: rocker box, primary cover, lifter
base, transmission covers, oil pump, air cleaner, cam
cover, point cover, timing plug, motor mounts (early XL
motor mounts include spacers). Sportster kits also include fasteners for sprocket cover, rear master cylinder
and generator. Button head allens and flat head allens
are used where necessary.
7955 Sportster 2004-on
7934 Sportster 1994-03
7933 Sportster 1991-93
7932 Sportster 1986-90
T/L XL Chrome Outer Rocker Cover 2004
64282 17551-04
Chrome Rocker Box Cover Set
Chrome 6 piece rocker box covers feature a smooth chrome
finish and include gaskets for both heads .
45914
2007-on XLS
1-134
www.prestoncycle.com
XL EVO 1986-On Gaskets
79978
79911
James Top End Gasket Kits-Evo
PCPOEM
7997817032-86-B
79979 17032-91
Description
James Motor Gasket Kits-Evo
XL 1200 1986-90 1200 (w/steel base) PCPOEM
Description
XL 1200cc 1991-03 w/.045 h/gasket 79929* 17026-86
XL 1986-90 w/metal base & rocker
and metal rocker base
79911* 17026-91
XL 883cc 1991-03 w/rubber
79912 17026-91-MLS XL 883/1200cc 1991-03 w/MLS head gasket, .020 RCM base and RCM rocker base
*Motor and transmission gasket and seal kit
79977
James Rocker Cover Gasket Kits
PCPOEM
79971 17030-89
79989 17030-89-X
79977 17030-91
79990 17030-91-X
Description
1986-90 w/rubber & paper rocker base
1986-90 w/steel rocker base
1991-03 w/rubber & paper base
1991-03 w/rubber & steel base V-Twin Rocker Box Gasket Kits
These gasket kits include both rocker to head gaskets and
molded o-ring cover gaskets with bolt seals and washers for
two heads. Fits 1991-03 XL 883-1200 models.
25414
79814
Oil Pump Gasket XL
1989-on
25244 26495-89 (10 pack)
James Oil Pump Gasket and Seal Kits
79814 1977-90
79928 1991-10 883-1200CC
79928
www.prestoncycle.com
1-135
XL Evo 1986-On
66129
T/L XL Complete Gasket Sets
PCPApplication
66128 1991-03 (17026-91C)
66129 2004-on (17027-04)
Top End Kits
66134 1991-03 (17032-91)
66135 2004-on (17049-04)
Athena Gasket XL 1991-03
For Sportster 1200 models 1991-03.
25301 17026-91A
James XL Cam Cover Gaskets
PCP Year EngineDescription
79564 2000-09 883cc
Paper cam gear cover gasket 1200cc w/silicone (5 pk)
Quick Change Cam Gear Gasket and Seal Kit
Fits XL and Evo motors. Includes both cork and quad seals
for pushrods to fit all year range.
PCPApplication
25615 1986-90
25616 1991-03
1-136
www.prestoncycle.com

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