Eagle Chevy 454 4.250in Crank 6.385in I-Beam Rods -3cc Flat Top 4.280in Pistons Balanced Assembly

If you're rebuilding the heart of your Chevy 454 for street use, a balanced rotating assembly like this one from Eagle is a solid foundation. This assembly is designed for pump gas, naturally aspirated applications, meaning it's built to perform reliably on regular fuel without forced induction. Getting the rotating assembly balanced from the start saves you a significant step and ensures smoother operation and longevity for your engine.

Eagle has put together a well-built package here. It starts with a 4.250-inch cast crankshaft, paired with 6.385-inch I-beam connecting rods secured by 7/16-inch ARP 8740 bolts. For the pistons, you get hypereutectic KB flat-tops with a -3cc dish, designed to work with a 4.280-inch bore. The assembly also includes plasma-moly file-fit piston rings and King SI rod and main bearings, so you have the essential rotating components ready to go.

This assembly is balanced from the factory, which is a critical step for engine smoothness and durability, especially in street applications. Keep in mind that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures.