Moroso Crankshaft Pulley - Small Block - Long Pump - Single 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.

• Small Block Chevy
• Single Groove
• 30% Reduction
• 4.95" O.D.
• Long Water Pump