Small Block Chevy Cast Alum. Short Pump Double Groove Pulley
- Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
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.
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.
Item DetailsCast Aluminum Upper
More Like This
Small Block Chevy Aluminum Double Upper Pulley, Short Pump
Small Block Chevy Alum. Long Pump Double Groove Upper Pulley
Double Groove Water Pump Pulley, Big Block Chevy, Long Pump, Black
1955-68 Small Block Chevy Single Groove Upper Pulley, Short Water Pump
1969-85 Small Block Chevy Double Groove Upper Pulley, Long Water Pump
Double Groove S/B Chevy Long Water Pump Pulley, Black
1969-1985 Small Block Chevy Aluminum Single Upper Pulley, Long Pump
Small Block Chevy Aluminum Single Upper Pulley, Short Pump
Small Block Chevy Billet Aluminum Water Pump Pulley, 6-7/8 Inch O.D.
Mr Gasket 5315 Water Pump Pulley, Aluminum, SBC