Eagle Pontiac 455 4.250in Crank 6.800in H-Beam -6cc Flat Top 4.155in Pistons Rotating Assembly

This rotating assembly from Eagle gives you a complete package for your Pontiac 455 build. Inside this kit, you'll find a 4.250-inch forged 4340 crankshaft, 6.800-inch H-beam connecting rods secured with 7/16-inch ARP 8740 bolts, and forged 4032 Mahle pistons. The pistons are a flat-top design with a -6cc dish and are sized for a 4.155-inch bore. The assembly also includes plasma-moly file-fit piston rings and King XP rod and main bearings, so you have the core components ready for your engine.

Eagle Competition Rotating Assemblies are built for demanding use, making them a solid choice for various racing applications, including those using nitrous oxide or forced induction. The forged 4340 steel crankshaft offers a strong foundation, while the H-beam connecting rods are well-known for their strength and reliability under stress. The Mahle pistons are forged from 4032 aluminum, which is a good choice for high-performance engines due to its thermal expansion properties, helping to maintain proper piston-to-wall clearance. The included King XP bearings are designed for high-load conditions, ensuring smooth operation for the crankshaft and connecting rods.

This assembly is designed for the Pontiac 455 engine. Please note that this part is not CARB approved and cannot be shipped to California. It's always a good idea to consult your engine builder or refer to Eagle's detailed specifications for installation and compatibility with other engine components.