Eagle Chevy 454 4.250in Crank 6.385in H-Beam 18cc Dome 4.280in Pistons Balanced Assembly

If you're rebuilding a high-performance Chevy 454 engine for racing, especially with plans for nitrous or forced induction, a strong rotating assembly is the heart of your build. This balanced assembly from Eagle is designed to handle the stresses of demanding applications. It includes a forged 4340 crankshaft with a 4.250-inch stroke, paired with 6.385-inch H-beam connecting rods secured by 7/16-inch ARP 8740 bolts. These components are known for their strength and reliability under extreme conditions.

The pistons are forged 4032 Mahle units with an 18cc dome, giving them a 4.280-inch bore size. They come with plasma-moly file-fit rings, which allow for precise gap setting to optimize performance and sealing, especially important when dealing with boosted or nitrous applications. To ensure smooth operation and proper lubrication, the assembly includes King XP rod and main bearings. This entire rotating assembly is professionally balanced, which is crucial for reducing engine vibration and improving overall longevity, particularly at higher RPMs.

This assembly is a solid option for serious engine builders looking for a robust foundation for their performance 454. Please note that this part is not CARB approved and cannot be shipped to California. Always consult manufacturer instructions for proper installation and break-in procedures.