Moroso Crankshaft Pulley - Big Block - Short Pump - Double Groove

Moroso crankshaft pulleys are precision machined from high grade, lightweight aluminum castings.  They feature extra-deep belt groves for better belt retention durning rapid changes in engine RPM.  The small diameter pulley slows fan, water pump, and alternator speed to reduce power robbing drag.  Also improves water pump operation at high RPM by reducing the impeller speed below cavitation threshold.

• Big Block Chevy
• Double Groove
• 25% Reduction
• 5.40" O.D.
• Short Water Pump