Moroso 64060 Moroso Chevrolet Small Block (w/Short Pump) Crankshaft Pulley - Double Groove - Cast Aluminum

Crankshaft Pulley, Cast, double groove, 25% reduction, SBC, short water pump

• Fits: SBC, 1968-earlier (with short water pump)
• 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