SBC Single Groove Crankshaft Pulley 50% Reduction 54070
B&B 54070 Single Groove Crankshaft Pulley offers a 50% reduction in RPM over most stock Crankshaft Pulleys. Made from Cast 356 Aluminum, each pulley is machined to exacting tolerances. These deep groove pulleys are constructed to properly align belts with existing pulleys at race engine speeds. Reduction in belt speed reduces the chance of premature failure of belt driving accessories.
- SBC with Short Water Pump Pre 1969
- Single Groove
- 50% RPM Reduction
- Includes Mounting Hardware