Crank Pulley 1V-Groove - BBC Balancer

The POWERMASTER Crank Pulley 1V-Groove BBC Balancer is specifically designed for big-block Chevrolet engines that require a reliable serpentine belt drive. This single-groove pulley is essential for those rebuilding classic muscle cars, upgrading street rods, or tuning high-performance crate engines. It serves as the critical interface between the crankshaft and accessory drives.

Constructed to maintain proper belt tension and alignment, this pulley helps prevent slip and wear on alternators, water pumps, and power steering systems. Weighing just 1.22 lbs and measuring 6.55 inches in diameter, it offers lightweight performance while ensuring effective power delivery across the RPM range. The precisely machined groove is optimized for single-belt serpentine systems commonly used in modern BBC engine swaps and restorations.

Ideal for BBC engine builders, restoration shops, and enthusiasts, this pulley pairs seamlessly with POWERMASTER alternators and GM-style big-block timing covers. Its design is particularly beneficial for those upgrading older muscle cars to modern efficiency. Installation is straightforward, requiring standard crankshaft hub mounting techniques.