Eagle Chevy 454 4.250in Counterweight Crank 6.385in H-Beam 43cc 4.310in Pistons Rotating Assembly

If you're building a serious performance Chevy 454 engine for extreme competition, this Eagle rotating assembly is a solid foundation. It's designed to handle the intense demands of exotic fuels, heavy nitrous use, and high boost applications, giving you the confidence to push your engine hard.

At the heart of this assembly is a 4.250-inch forged 4340 steel crankshaft featuring center counterweighting. This design helps to balance the rotating mass more effectively, reducing stress on your engine's bearings and improving overall durability under high RPM and load. Paired with the crank are 6.385-inch H-beam connecting rods, known for their strength and reliability in performance applications. These rods are secured with 7/16-inch ARP L19 bolts, a strong choice for high-stress builds. The pistons are forged 2618 aluminum from Mahle, featuring a 43cc 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 ring gap adjustment to match your specific build, and King XP rod and main bearings, which offer improved performance and durability over standard bearings.

This is a heavy-duty rotating assembly built for the most demanding engine builds. Please note that this assembly is not CARB approved and cannot be shipped to California. It's essential to consult with your engine builder or refer to manufacturer instructions for proper installation and balancing procedures to ensure optimal performance and longevity.