Eagle Chevy 502 1Pc 4.250in Counterwght Crank 6.385in H-Beam 37cc 4.600in Pistons Rotating Assembly

If you're building a serious performance Chevy 502 big block for extreme duty, this Eagle rotating assembly is a solid foundation. It's designed to handle the kind of stress that comes with exotic fuels, heavy nitrous use, or high boost applications. This isn't your average street rebuild kit; it's built for the most demanding competition engines.

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 vibration and stress on your engine block and bearings, especially at high RPMs. The connecting rods are Eagle's 6.385-inch H-beam units, known for their strength and reliability in high-stress environments. They come equipped with 7/16-inch ARP L19 bolts, which are a significant upgrade over standard rod bolts, offering superior clamping force and durability under extreme loads.

The pistons are forged 2618 JE units with a 37cc dome, designed to work with the crankshaft and rods to achieve the desired compression ratio for your build. They come with plasma-moly file-fit rings, allowing for precise gap setting to optimize sealing and performance. To complete the assembly, King XP series rod and main bearings are included. These bearings are engineered for high-performance applications, offering improved load-carrying capacity and wear resistance. This comprehensive package gives you a well-matched set of components ready to be installed in your competition engine.