Edelbrock Water Pump for Gen IV LS Engine 2005-08 Installation Instructions

Edelbrock Water Pump for Gen IV LS Engine 2005-08 Installation Instructions
Part #8893 & #8894 for Chevy LS Engines
PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common
tools and procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable
performing this installation, it is recommended to have the installation completed by a qualified mechanic. If you have any questions,
please call our Technical Hotline at: 1-800-416-8628.
IMPORTANT NOTE: Proper installation is the responsibility of the installer. Improper installation
will void your warranty and may result in poor performance and engine or vehicle damage.
DESCRIPTION: Edelbrock 8893 is a high performance street, heavy duty aluminum water pump for 2005-2008 GM LS cars while
8894 is for 2009-2016 GM LS cars. These pumps are designed to offer greater durability and increased water flow/pressure ultimately
improving engine cooling system efficiency. These high performance water pumps are compatible with all OEM accessories.
INSTALLATION: Installation is the same as for original equipment water pumps. Consult service manual for specific procedures, if
necessary. When installing the new water pump, tighten the water pump bolts a first pass to 15 N.m (11 lb ft). Then, tighten the water
pump bolts a final pass to 30 N.m (22 lb ft).
CAUTION: Be sure that pulley bolts don’t protrude through the hub so far that they hit the water pump housing. Check closely for any
interference with drive belts or accessories.
ADDITIONAL ACCESSORIES: This aluminum water pump requires a bolt-on style aftermarket pulley and is not compatible with the
stock pulley. A hard anodized billet pulley is available separately as part #8899.
(1) - Water Pump Assembly
(1) - Brass Fitting; 3/8” NPT x 5/8” Hose Barb
(1) - Brass Fitting; 1/2” NPT x 3/4” Hose Barb
8893 Applications:
8894 Applications:
2005-2006 Pontiac GTO LS2
2005-2007 Chevrolet Corvette LS2
2006-2007 Cadillac CTS-V LS2
2008 Chevrolet Corvette LS3
2008-2009 Pontiac G8 GT L76
2006-2008 Chevrolet Corvette Z06 LS7
2009-2013 Corvette LS3
2009-2015 CTS-V LSA
2009-2013 Corvette Z06 LS7
2009 G8 GXP LS3
2014-2016 Chevy SS
Incorrect pulley alignment or an unbalanced condition puts excessive strain on the pump’s shaft and/or bearing and will result in
early failure of the shaft and/or bearing. The balance of the assembly depends primarily upon the concentricity of the fan clutch
and spacers with the pump shaft. Concentricity is not assured when universal type clutches or spacers are used. Universal
fan clutches and spacers have a 3/4” pilot hole, so an adapter must be used when installing a water pump with a 5/8” shaft.
This adapter bushing is supplied with the clutch unit. These adapter bushings add to the machine tolerances of the assembly,
so special care must be taken to maintain concentricity with the shaft and the fan clutch. Failure to do so will void warranty.
The use of aftermarket (non-OEM) fan spacers are not recommended and will void the warranty of the water pump.
Edelbrock LLC • 2700 California St. • Torrance, CA 90503
Tech-Line: (800) 416-8628
Part #8893, 8894
Rev. 3/20/17 - NP
©2017 Edelbrock LLC
Brochure #63-8893
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