Eagle Chevy 454 4.250in Counterweight Crank 6.385in H-Beam 44cc 4.310in Pistons Rotating Assembly

If you're building a serious performance Chevy 454 engine intended for extreme competition, like heavy nitrous use or high boost applications, a robust rotating assembly is the heart of your build. This Eagle Heavy Duty Rotating Assembly is designed to handle those demanding scenarios, providing a solid foundation for your high-horsepower goals.

This assembly starts with a 4.250-inch forged 4340 steel crankshaft featuring center counterweighting. This design helps to balance the assembly more effectively, reducing stress on the main bearings and improving overall engine smoothness under load. Paired with the crank are 6.385-inch H-beam connecting rods, known for their strength and reliability in high-performance applications. These rods are secured with 7/16-inch ARP L19 bolts, a strong choice for high-stress environments. The pistons are forged 2618 aluminum from JE, featuring a 44cc dome and a 4.310-inch bore size, designed to work with the crank and rods for optimal compression and performance. The assembly also includes plasma-moly file-fit piston rings, allowing for precise gap setting to match your engine's bore and intended use, and King XP main and rod bearings, which offer improved durability and performance for high-load conditions.

This rotating assembly is a significant upgrade for any performance-oriented Chevy 454 build. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and tuning procedures to ensure the longevity and performance of your engine.