SB/BB Chevy Single Groov e Crankshaft Pulley LWP

The SB/BB Chevy Single Groove Crankshaft Pulley LWP from Racing Power Co-Packaged is a precision-engineered harmonic balancer replacement designed for small-block and big-block Chevy V8 engines running short water pump configurations. This single-groove pulley serves as the critical interface between the engine's crankshaft and serpentine belt drive system, making it essential for any street machine, hot rod, or performance build requiring OEM-correct or upgraded pulley dynamics. Whether you're restoring a classic Chevy or tuning a street performance engine, a quality crankshaft pulley directly impacts belt tension stability, accessory drive reliability, and overall engine longevity.

Manufactured from durable steel and finished in chrome, this 6.8-inch diameter pulley delivers reliable performance in high-heat engine compartments while resisting corrosion and maintaining aesthetic appeal. The single V-belt groove design is optimized for traditional serpentine belt systems, ensuring proper belt tracking and minimizing slippage during acceleration or heavy accessory load conditions. At 1.48 pounds, the pulley's compact profile integrates seamlessly with short water pump setups common in vintage Chevy V8 applications, eliminating the need for adapter kits or custom fabrication. The chrome finish not only provides visual appeal but also offers superior protection against oxidation compared to bare steel alternatives.

This crankshaft pulley is specifically engineered for small-block and big-block Chevy V8 engines paired with short water pump housings—a configuration common in first-generation Corvettes, Camaros, and classic muscle cars. Installation is straightforward for anyone with basic mechanical competency, requiring standard socket and wrench tools. Verify water pump location and harmonic balancer compatibility before ordering to ensure proper fitment with your existing engine block and accessory mounting points. Competent mechanics and experienced hobbyists will find this pulley delivers OEM-quality performance at an accessible price point for both restoration and performance upgrade applications.