Eagle Pontiac 455 4.250in Crank 6.800in I-Beam Rods -22cc 4.155in Pistons Rotating Assembly

If you're building a high-performance Pontiac 455 engine for naturally-aspirated racing, this Eagle Pro Street rotating assembly is a solid foundation. It bundles together the critical rotating components you need to get your build underway, ensuring they're balanced and designed to work together from the start.

At the heart of this assembly is a 4.250-inch forged 4340 crankshaft, chosen for its strength and durability under racing conditions. Paired with it are 6.800-inch I-beam connecting rods, also made from robust 4340 steel, and secured with 7/16-inch ARP 8740 bolts for reliable clamping force. The pistons are forged 4032 aluminum from Mahle, featuring an inverted dome design with a -22cc volume and a 4.155-inch bore size, which helps achieve a specific compression ratio suitable for racing applications. This assembly also includes plasma-moly file-fit piston rings, allowing for precise gap adjustment to match your engine's bore and intended use, and King XP series rod and main bearings to ensure smooth rotation and proper oil clearance.

This rotating assembly is designed for performance builds and is not CARB approved, meaning it cannot be shipped to California. It's a comprehensive package for enthusiasts looking to maximize the potential of their Pontiac 455 engine in a racing environment.