SBF 351 Double Groove 40% Reduction Crankshaft Pulley 4 Bolt 54550
B&B 54550 Double Groove Crankshaft Pulley offers a 40% 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.
- Small Block Ford 351-400
- 302 Boss 4 Bolt
- 40% RPM Reduction
- Includes Mounting Hardware