Moroso Crankshaft Pulley, Billet, double groove, 50% reduction, SBC long water pump
Part # 64111
- Fits: SBC and 90° V6 Chevs, 1969-later (with long water pump), 4.04" O.D.
 - CNC Machined from billet aluminum with hard-coat anodized finish
 - Deep precision machined grooves ensure belt retention even during extreme changes in engine RPM
 - When crankshaft and water pump pulleys are used together, water pump speed is reduced by approximately 30%
 - Uses 36° x 17/32" wide belt