Eagle Chevy 427/454 3.766in Crank 6.135in I-Beam Rods 4.280in Pistons Rotating Assembly

If you're rebuilding a Chevy 427 or 454 engine for naturally-aspirated racing, this Eagle Pro Street rotating assembly is a solid foundation. It bundles together the critical components that make up the heart of your engine's power production, ensuring they're balanced and built to handle the demands of the track.

This assembly starts with a 3.766-inch forged 4340 crankshaft, known for its strength and durability under high stress. Paired with it are 6.135-inch 4340 I-beam connecting rods, which are secured with 7/16-inch ARP 8740 bolts, a popular choice for their reliability. The pistons are forged 4032 Wiseco Pro Tru units with a 21cc dome, designed for a 4.280-inch bore, and come with plasma-moly file-fit rings, allowing for precise gap setting to match your engine's specific needs. To complete the package, King XP rod and main bearings are included, offering robust performance and wear resistance.

This rotating assembly is intended for racing applications and is not CARB approved, meaning it cannot be shipped to California. It's a well-built package designed to give you confidence in your engine's internal strength for competition.