1V Accessory Pulley/ Crank Hub

The 1V Accessory Pulley/Crank Hub from The Blower Shop is a precision-engineered component designed for supercharger and blower installations on high-performance engine builds. This crank hub serves as the critical interface between your engine's crankshaft and auxiliary drive components, enabling efficient power transfer to superchargers, alternators, and other belt-driven accessories. Whether you're building a street performance engine or preparing a dedicated track vehicle, this hub is essential for integrating modern blower technology into your power plant while maintaining reliable belt tension and accessory synchronization.

Manufactured to exacting standards by The Blower Shop, this 1V accessory pulley hub features precision machining to ensure concentricity and balanced rotation at high RPM. The hub is designed to work seamlessly with V-belt drive systems commonly found on supercharger installations, providing a secure mounting surface while distributing rotational loads evenly across the crankshaft nose. The compact design—measuring 6.3 x 3.7 x 6.3 inches and weighing just 2.17 lbs—allows for easy installation in tight engine bays while maintaining structural rigidity under the demanding conditions of supercharged operation. Quality materials and precision finishing ensure long-term durability and resistance to heat cycling from high-boost applications.

This pulley hub benefits enthusiasts and professional builders implementing blower systems on vintage and modern muscle cars, street rods, and performance trucks. Installation requires proper alignment with existing supercharger pulleys and belt routing—critical for preventing premature belt wear and vibration issues. Compatibility depends on your specific engine platform and supercharger setup, so verification with your blower system specifications is recommended before purchase. Proper belt tension and pulley alignment during installation will maximize the lifespan of this component and ensure optimal power delivery to all driven accessories.