Moroso 64070 Cast Aluminum Single Groove Crankshaft Pulley (SBC, Short Water Pump)

Description

; 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

50% reduction

Short water pump

Grooves give belt retention

Pulley diameter slows fan/water pump/alternator speed to reduce drag

Pump impeller speed below cavitation threshold

36° x 17/32W belt.