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Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley
Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley

Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley

Chevy Small Block V8, 5.44" Overall Diameter, 2.80" Mounted Length, .79" Inside Diameter

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Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley
Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley
Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley
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Small Block Chevy Cast Alum. Long Pump Double Groove Lower Pulley
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Part # 91015488
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  • S/B Chevy, double-groove pulleys, 20% reduction
  • Available for long or short water pumps
  • 5/8" centering hole

Details

MFG. Part #:
91015488
Overall Diameter:
5.44"
Mounted Length:
2.80"
Inside Diameter:
.79"
Groove Count:
2
Belt Width:
.41"
Belt Type:
V-Belt
Material Type:
Aluminum
Finish:
Natural
Sold in Quantity:
Each
Water Pump Style:
Long

Info

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. 

Item Details

Cast Aluminum Lower

Notes

Mounted length is from the face of the harmonic balancer towards the front of the vehicle. 25% reduction.

Important Messages

  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
Some parts are not legal for use in California or other states with similar laws/regulations

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