Eagle Chevy 427/454 3.766in Crank 6.135in I-Beam Rods 4.310in Pistons Rotating Assembly

This Eagle Pro Street rotating assembly gives you the core components to rebuild or upgrade your Chevy 427 or 454 engine. You get a 3.766-inch stroke forged 4340 crankshaft, a set of 6.135-inch long 4340 I-beam connecting rods, and a set of 4.310-inch bore forged 4032 Icon pistons with a closed chamber dome. This assembly is designed for naturally-aspirated racing applications, providing a solid foundation for a performance build.

The crankshaft is forged from 4340 steel, known for its strength and durability under high stress. The connecting rods are also forged from 4340 steel and feature a robust I-beam design, paired with 7/16-inch ARP 8740 bolts for secure rod cap retention. The included Icon pistons are forged from 4032 aluminum, which offers good thermal expansion properties for a tighter piston-to-wall clearance. These pistons have a 28.2cc closed chamber dome, which will affect your compression ratio depending on your cylinder head volume. The assembly also comes with plasma-moly file-fit piston rings, allowing for precise ring gap adjustment to match your specific engine build. To complete the rotating assembly, King XP series rod and main bearings are included, offering improved lubrication and wear resistance.

This rotating assembly is a popular choice for those building a performance engine for racing. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and balancing procedures.