Product Summary

Mechanical Water Pump Type, Clockwise/Standard Rotation

  • State of the art T6 aluminum castings
  • Features an impeller with curved vanes for maximum flow, pressure, and equal distribution to both sides of the block
  • Unique seal assembly for leak proof operation
  • Pulleys feature a cast aluminum construction and natural finish
  • 20% diameter reduction slows accessories down for less drag

Comes as a Kit

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Key Specs

Water Pump TypeMechanical
Water Pump StyleShort Depth
RotationClockwise/Standard
Pump FlowHigh-Volume
Housing MaterialAluminum
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91605202 Details

Small Block Chevy Aluminum Water Pump w/Underdrive Pulleys

Short Water Pump

Each pump is manufactured from T6 aluminum and features an impeller with curved vanes for maximum flow, pressure and equal distribution to both sides of the block. It also features a unique seal assembly for leak proof operation.

  • 3/4" shaft with 5/8" fan pilot snout
  • 1/2" NPT hole on passenger side (for heater hose) and on top (for bypass hose)
  • Stamped steel rear plate
  • Extra thick fan hub
  • 3/4" ultra duty bearings
  • Adjustable cam stop
  • State of the art aluminum castings
  • Equal flow to both cylinder banks
  • Precision impeller
  • Higher flow rate and pressure rate
  • Weighs 6 lbs.
  • Does not have a set screw retaining the fan hub

NOTE: This pump is designed for street use and is not to be run on a motor which exceeds 5,500 RPM. 

Learn how to choose the correct water pump for your application by reading our tech article.  SBC - Short vs Long Water Pump.  

Item Details

3/4" shaft, 5/8" pilot

Allen Pipe Plug

Allen pipe plugs are precision machined to ensure precise thread engagement. These lightweight aluminum plug fittings are designed to match up with all performance hose and hose ends. Blue anodized finish.

Cast Aluminum Pulley

Speedway Cast Aluminum double groove pulleys for Small Block Chevy feature a 20% reduction. Reduction pulleys have a smaller diameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation.

  • Machined from lightweight cast aluminum
  • Superior belt retention with extra-deep grooves
  • 20% reduction slows accessories down for less drag
  • Adds top-end horsepower
  • Reduces water pump impeller speed below cavitation threshold
  • Improved high-RPM cooling capabilities
  • 6-5/8" O.D.

Available for Short style pumps (55-68). Fits a 5/8" shaft.

Lower Pulley

Speedway Cast Aluminum double groove pulleys for Small Block Chevy feature a 20% reduction. Reduction pulleys have a smaller diameter which slows the speed of your fan, water pump, and alternator to reduce drag for more top-end horsepower. Plus, high RPM water pump operation is improved due to reduced fluid cavitation.

  • Machined from lightweight cast aluminum
  • Superior belt retention with extra-deep grooves
  • 20% reduction slows accessories down for less drag
  • Adds top-end horsepower
  • Reduces water pump impeller speed below cavitation threshold
  • Improved high-RPM cooling capabilities
  • 5-7/16" diameter

Belts

Replacement pairs of matched belts for Speedway small block Chevy cast aluminum pulleys for short water pump.

Item Details

Pair of Matched Belts, 32.625" length

Pulley Spacer

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

Pulley Shims

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

Learn more about using different water pump accessories to best fit your application by reading our tech article.  SBC - Short vs Long Water Pump. 

Item Details

(2) 1/16" shims, (1) 1/8" shim

Allen Bolts

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

  • Fine Thread

 

 

Charts

Speedway Motors 91605202 Specifications

KEY SPECS
MFG. Part #91605202
BrandSpeedway Motors
Water Pump TypeMechanical
Water Pump StyleShort Depth
RotationClockwise/Standard
Pump FlowHigh-Volume
Housing MaterialAluminum
Housing FinishNatural
GENERAL
Groove Count2
Belt Width.36"
Block to Hub Distance5.625 Inch (5-5/8")
Heater Inlet Size1/2" NPT
Hose ID1.82"
Shaft Length.56"
Pilot Shaft Diameter0.63 Inch
Gasket(s) IncludedYes
Hardware IncludedYes
Sold in QuantityKit

Questions & Answers

Fitment

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  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

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  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

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  • Gen 1 L14 Small Block Chevy

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  • 2-Piece Rear Main Chevy 283

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