Since 1952
America's Oldest Speed Shop ®
Speedway Motors Bill Smith

Small Block Chevy Aluminum Water Pump, Long

SAME DAY SHIPPING!

Specs
Material Type:
Aluminum
Weight:
8.05
Sold in Quantity:
Each
Finish:
Painted
Shaft Diameter:
.63
Mounted Length:
7.38
Shaft Length:
.45
Hose ID:
1.80
Gasket(s) Included:
Yes
Hardware Included:
Yes
Heater Inlet Size:
1/2" NPT
Notes
Clearance from back of pump to engine block mount is 1.38" Not for engines exceeding 5,500 RPM.

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What's in the Box

Lightweight aluminum long style pump for S/B Chevy. Has provisions for your power steering mount.

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

910-15590 Instructions (PDF)

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

You may also be interested in:

Stewart Components 13113 Small Block Chevy Stage 1 Water Pump, Long
                        

Uses new, OEM cast iron castings machined and assembled by Stewart Components to their exacting standards. They feature higher flow and pressure for better cooling. They have a 3/4" bearing and 5/8" shaft. Precision ground hub for perfect pully alignment, equal flow to left and right cylinder heads. Precision impeller installed to exacting tolerances. 

Includes gaskets. One year warranty.

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

Reduction Pulley Combo for Small Block Chevy Long Pump
                        

Combo includes cast aluminum double-groove aluminum water pump pulley, crank pulley, and matched pair of heavy duty belts. Slows water pump speed by 20% for increased horsepower.

For Small Block Chevy V8s with '69-'86 long style water pumps with 5/8" shaft.

Note: The lower crank pulleys in our combo kits 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

Small Block Chevy Alum. Long Pump Double Groove Upper Pulley
                        Cast aluminum double groove V-belt upper pulley for '69-'85 Small  Block Chevy long style water pumps. Fits over 5/8" water pump snout, but can be  drilled out to 3/4" if needed. 
  • Precision machined aluminum construction
  • Lightweight and strong
  • Two grooves for V-belts
  • Hub surface to first groove center: 2.415"
  • Center-to-center of grooves:  11/16"
  • Center hole fits a 5/8" shaft (can be drilled out to 3/4" if needed)
  • Diameter:  6-5/8"

It may be necessary to shim either or both of the pulleys to achieve perfect belt alignment. There are variances between manufacturers of both water pumps and pulleys.

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.

Small Block Chevy Cast Alum. Long Pump Double Groove 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.

This is a 25% reduction pulley when used with the correct upper pulley, part number 91015476.

  • 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
  • 910-15488
    • 5-7/16" O.D.

Available for long water pumps. 5/8" shaft.

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.