Product Summary

Crankshaft Pulley Included, Water Pump Included

  • Features a threaded for adjustable cam stop and 3/4" ultra duty bearings
  • The 1/2" NPT internal plug is made from hard-anodized aluminum
  • 1.1 pulley combo includes a cast aluminum double groove water pump pulley and double groove crank pulley, and a matched pair of heavy-duty belts
  • Lower spacer is made from aluminum and is designed to match with the upper pulleys
  • Water pump pulley shim kit provides proper drive belt alignment with pulleys

Comes as a Kit

See more details

Key Specs

Crankshaft Pulley IncludedYes
Crankshaft Pulley Grooves2
Water Pump IncludedYes
Water Pump MaterialCast Aluminum
Water Pump FinishNatural
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 9108591 Details

Speedway Motors has developed an accessory drive kit for 602 and 604 GM crate engines which utilize a short water pump. This kit was designed with racers in mind since the 602/604 crate engines are commonly used in oval track racing.

Kit Includes:

Short Heavy-Duty Aluminum Water Pump

This super heavy-duty race water pump features additional casting designs for more strength and reinforcement, plus a 3/4" fan pilot shaft and super duty bearing. It has 1/2" NPT threaded outlets on both the top and side, plus a 3/16" steel rear plate. It weighs 7-3/4 lbs.

  • 3/4" fan snout
  • Extra thick fan hub
  • 3/4" ultra duty bearings
  • Threaded for adjustable cam stop
  • State of the art aluminum castings
  • Equal flow to both cylinder banks
  • Precision impeller
  • Higher flow and pressure
  •  
  • The working height of this pump is approx. 5.85".

1/2" NPT Internal Plug

  • Hard-Anodized Aluminum Coating Penetrates Aluminum For Wear and Corrosion Resistance
  • Provides An Aggressive Look
  • Last Twice As Long As Traditional Anodized Fitting

1:1 Pulley Combo

  • Kit includes a cast aluminum double groove water pump pulley and double groove crank pulley, and a matched pair of heavy-duty belts. Has a 1:1 water pump/crankshaft speed ratio.
  • Heavy-duty aluminum construction
  • Matched V-belts - 30-5/8" x 3/8" belts
  • 1:1 to ratio
  • Fits Small Block Chevy V8 with '55-'68 short-style water pump with either a 5/8" or 3/4" shaft.

Aluminum Lower Pulley Screw Kit

  • Set of three Allen bolts for lower aluminum water pump pulley.
  • Fine Thread

Aluminum Lower Pulley Spacer

  • Spaces lower pulley out to match with the upper pulleys
  • Each spacer is .090" thick aluminum

Water Pump Shim Kit

  • Water pump pulley shim kit provides proper drive belt alignment with pulleys
  • Kit contains two aluminum 1/16" spacers and one 1/8" spacer

Steel Power Steering Pump with Pulley

Cast iron power steering pump has aluminum V-belt pulley. These pulleys are popular for use on late models and IMCA modifieds. Comes with AN6 pressure fitting. Order AN8 or AN10 supply fitting. These power steering pumps have a pressure relief valve.

Block Mount Power Steering Pump Bracket

These power steering pump brackets are for short water pumps. For mounting Profile or Sweet Pump to small block Chevy V8. Bolt kit included. Anodized black.

Charts

Speedway Motors 9108591 Specifications

KEY SPECS
MFG. Part #9108591
BrandSpeedway Motors
Crankshaft Pulley IncludedYes
Crankshaft Pulley Grooves2
Water Pump IncludedYes
Water Pump MaterialCast Aluminum
Water Pump FinishNatural
Water Pump Pulley IncludedYes
Power Steering Pump IncludedYes
Power Steering Pump Bracket FinishBlack Painted
Power Steering Pump Brackets IncludedYes
Power Steering Pump FinishNatural
Power Steering Pump Reservoir IncludedNo
Power Steering Pulley FinishNatural
Power Steering Pulley Grooves1 Groove | V-Belt
Power Steering Pulley IncludedYes
Power Steering Pulley MaterialAluminum
Alternator IncludedNo
A/C Compressor IncludedNo
GENERAL
Sold in QuantityKit

Ratings & Reviews

4

2 Reviews

Overall Assessment

Customers appreciate the GM604 late model for its superior quality, scoring it a perfect 10/10 for satisfaction. However, some noted issues with its compatibility with power steering pumps due to a 2-groove pulley design, instead of the competitor's 3-groove. They suggested the item could have better value if it included fitting parts for convenience, offering the same quality at a comparable price when bought individually. Despite this, the product's robust performance still stands out, with customers willing to circumvent challenges due to its merits.

4

2 reviews

5

1

4

0

3

1

2

0

1

0

Filter by Ratings

10/10 recommend and 10/10 satisfied with delivery an quality

5.0

a year ago

Bobo

Grayson Kentucky

Verified

Gm604 late model

Would Recommend

Don't think I would buy again

3.0

3 years ago

Steven

Arkansas

Made to sound like a full kit but belts won't fit power steering pump and it's only a 2 groove pulley so you have to find one that fits for the pump to crank or how ever you run it instead of just adding a belt like the other 602 pulley kit that has a 3 groove for the pump. I called tech support and they do not have anything in the computer as to what size belt fits in order to include the pump. Normally is just a run to the parts store but I live in a rural area an hour away from everything. For the price you can piece together a kit that includes everything for about the same price if you buy individually.

Showing 2 of 2 reviews

Questions & Answers

1 Question • 1 Answer

Is there a recommended alternator and bracket kit that goes with this, using on a 602 crate engine in a Monte Carlo Hobby Stock

by Rocco

• 8 months ago

1 answer

1 of 1 questions shown

Customer Impersonation Script