Eagle Chevy 427/454 3.766in Crank 6.135in I-Beam Rods 4.350in Pistons Rotating Assembly

If you're building a high-performance Chevy 427 or 454 engine for naturally-aspirated racing, this Eagle Pro Street Rotating Assembly is a solid foundation. It bundles all the critical rotating components you need to get your build underway, saving you time and ensuring compatibility between parts.

This assembly starts with a 3.766-inch forged 4340 crankshaft, known for its strength and durability under demanding conditions. Paired with it are 6.135-inch I-beam connecting rods, also forged from 4340 steel, which are a popular choice for their balance of strength and weight. These rods come equipped with 7/16-inch ARP 8740 bolts, a well-respected name in high-strength fasteners, ensuring a secure connection under high stress. The pistons are forged 4032 aluminum from ICON, featuring a 4.350-inch bore size and a closed chamber dome design with a 10.2cc volume, intended to work with specific cylinder head configurations for optimal compression. The assembly also includes plasma-moly file-fit piston rings, giving you the flexibility to achieve a precise seal in your cylinder bores, and King XP series rod and main bearings, which are designed for enhanced performance and durability.

This rotating assembly is specifically put together for naturally-aspirated racing applications. Keep in mind that this part is not CARB approved and cannot be shipped to California. For a complete build, you'll want to ensure you have all the necessary supporting components like gaskets, seals, and a proper balancing procedure if required by your specific engine build.