Eagle Chevy 454 4.250in Counterweight Crank 6.385in H-Beam 43cc 4.350in Pistons Rotating Assembly

If you're building a serious performance Chevy 454 for extreme competition, you need a rotating assembly that can handle the stress. This Eagle Heavy Duty Rotating Assembly is designed for just that, whether you're running exotic fuels, heavy nitrous, or high boost applications. It's a well-built foundation for a powerful engine.

This assembly starts with a 4.250-inch forged 4340 steel crankshaft that's center counterweighted for better balance and reduced vibration at high RPMs. Paired with it are 6.385-inch H-beam connecting rods, known for their strength and reliability under load, secured with 7/16-inch ARP L19 bolts. The pistons are forged 2618 aluminum from Mahle, featuring a 43cc dome and a 4.350-inch bore size, designed to work with the crank and rods for optimal compression and performance. It also includes plasma-moly file-fit piston rings, which offer good sealing and durability, and King XP series rod and main bearings for robust lubrication and wear resistance.

This is a complete rotating assembly, ready to be installed by a professional engine builder. Keep in mind 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 break-in procedures to ensure the longevity of your high-performance engine.