Eagle Chevy 427/454 3.766in Crank 6.135in I-Beam Rods 4.250in Pistons Rotating Assembly

Starting with a forged 4340 steel crankshaft featuring a 3.766-inch stroke, this Eagle Pro Street rotating assembly is built for serious performance in Chevy 427 and 454 big-block engines. It’s designed for naturally-aspirated racing applications where strength and reliability are key. The assembly includes 6.135-inch long I-beam connecting rods, also made from robust 4340 steel, which are secured with 7/16-inch ARP 8740 bolts. This combination is a solid choice for rebuilding or upgrading your engine's core rotating components.

The pistons are forged 4032 aluminum from ICON, featuring a 4.250-inch bore and a 28.2cc closed chamber dome design, which helps achieve a desired compression ratio when paired with appropriate cylinder heads. To ensure a good seal and efficient combustion, the assembly comes with plasma-moly file-fit piston rings. For smooth operation and durability, King XP series rod and main bearings are included, offering improved performance over standard bearings.

This rotating assembly is a comprehensive package for engine builders looking for a well-matched set of high-performance internal components. Please note that this assembly is not CARB approved and cannot be shipped to California. It also carries a Prop 65 warning.