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Product Summary

Mechanical Water Pump Type, Clockwise/Standard Rotation

  • State of the art T6 aluminum casting water pump
  • 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 features a cast aluminum construction and natural finish
  • Pulley measures 6.65" OD and provides a 20% reduction

Comes as a Kit

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Key Specs

Water Pump TypeMechanical
Water Pump StyleShort Depth
RotationClockwise/Standard
Housing MaterialAluminum
Housing FinishNatural
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91605243 Details

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.  

 

Pulleys and Belts

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
  • 910-15482
    • 6-5/8" O.D.
  • 910-15484
    • 5-7/16" diameter

Note: The lower crank pulleys are manufactured thicker than normal stock pulleys.  This requires longer 3/8" bolts to be purchased separately.  Allen head type bolts recommended. 

Get the correct pulleys for your application by learning which water pump you have as explained in our tech article. SBC - Short vs Long Water Pump.  

 

Kit Includes

  • (1) Small Block Chevy Aluminum Short Side Water Pump
  • (1) Aluminum Allen Pipe Plug, 1/2 Inch NPT
  • (2) Aluminum Pipe Bushing Reducer Fittings, 1/2 NPT to 3/8 NPT
  • (1) Small Block Chevy Cast Alum. Short Pump Double Groove Pulley
  • (1) Small Block Chevy Cast Alum. Short Pump Double Groove Lower Pulley
  • (1) Matched Belts for Cast Aluminum Pulleys 910-15460
  • (1) Aluminum Lower Pulley Screw Kit, Fine Thread
  • (1) Aluminum Lower Pulley Spacer
  • (1) Universal Water Pump Shim Kit
  • (1) Aluminum Freeze Plugs with Return Set
  • (2) Black 90 Degree -8 AN Flare to 1/2 Inch NPT Pipe Adapter Fittings
  • (2) Black Straight -8 AN Flare to 3/8 Inch NPT Pipe Adapter Fittings
  • (2) Fragola 482508-BL AN Flare Tee Fittings, -8 AN to 3/8 NPT, Black
  • (6) Black Socketless Straight Push-On Hose Ends, -8 AN
  • (2) Black 90 Degree Socketless Push-On Hose Ends, -8 AN
  • (1) Aeroquip Special Application Socketless -8 AN Hose, Black, 6Ft Length

Charts

Speedway Motors 91605243 Specifications

KEY SPECS
MFG. Part #91605243
BrandSpeedway Motors
Water Pump TypeMechanical
Water Pump StyleShort Depth
RotationClockwise/Standard
Housing MaterialAluminum
Housing FinishNatural
GENERAL
AdjustableNo
Groove Count2
Block to Hub Distance5.625 Inch (5-5/8")
Hose ID1.82"
Shaft Length.56"
Pilot Shaft Diameter0.63 Inch
Gasket(s) IncludedYes
Hardware IncludedYes
Weight6.4 lbs.
Sold in QuantityKit

Fitment

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 DZ Small Block Chevy

  • Gen 1 DZ Small Block Chevy

  • Gen 1 L14 Small Block Chevy

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 267

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 267

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 267

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 267

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 267

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 267

  • 2-Piece Rear Main Chevy 262

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 262

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 400

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • Gen 1 L14 Small Block Chevy

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 265

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

  • 2-Piece Rear Main Chevy 283

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