; Precision machined from high grade, lightweight aluminum castings; Extra-deep belt grooves provide added belt retention during rapid changes in engine RPM; Small pulley diameter slows fan, water pump, and alternator speed to reduce horsepower-robbing drag; High RPM water pump operation is improved, reducing impeller speed below cavitation threshold; Uses 36° x 17/32 wide belt
- Cast Aluminum
- Single groove
- For SBC
- 30% Reduction
- Short water pump
- Grooves more belt retention
- Pulley diameter slows fan/water pump/alternator speed to reduce drag
- Pump impeller speed below cavitation threshold
- 36° x 17/32W belt.