Crank Pulley 2 Groove 4.750in Dia

The Crank Pulley 2 Groove 4.750in Dia from ALLSTAR PERFORMANCE is an essential crankshaft pulley engineered for Small Block Chevy engines requiring reliable belt drive control. This aluminum pulley manages V-belt power transmission from the crankshaft to accessories like the water pump, alternator, and power steering pump. Built for both street and competition applications, the 2-groove design provides precise belt tracking and reduced slippage during engine acceleration and sustained operation.

Manufactured from lightweight aluminum in a natural finish, this pulley features a 4.750-inch diameter profile optimized for short water pump mounting configurations typical of Small Block Chevy platforms. The 2-groove geometry accommodates dual-belt setups, distributing load evenly across both belts to minimize wear and vibration. All required hardware is included for straightforward installation. The compact profile and durable aluminum construction help reduce rotational mass while maintaining the structural integrity needed for high-RPM engine operation.

Small Block Chevy engine builders—whether restoring classic vehicles or building performance engines—rely on this pulley to ensure consistent accessory drive operation. The short water pump configuration suits tight engine bay installations and modern cooling system setups. Proper pulley sizing directly impacts belt tension balance and component longevity, making this ALLSTAR PERFORMANCE unit a critical upgrade for reliability and efficiency in both street and racing environments.