Eagle Chevy 454 1Pc 4.250in Crank 6.385in I-Beam Rod -3cc Flat Top 4.280in Pistons Balanced Assembly

If you're rebuilding the heart of your Chevy 454 for street use, this balanced rotating assembly from Eagle is a solid choice. It's designed for naturally aspirated engines running on pump gas, making it a practical option for many street rods and muscle cars. This assembly bundles together the critical rotating components, all balanced and ready to go, simplifying your engine build.

At the core of this assembly is a 4.250-inch cast crankshaft, paired with 6.385-inch I-beam connecting rods. These rods are secured with strong 7/16-inch ARP 8740 bolts, known for their reliability. The pistons are hypereutectic KB flat-tops with a -3cc dish, designed to work with a 4.280-inch bore. They come with plasma-moly file-fit rings, giving you the flexibility to set the correct gap for your specific application. To top it off, King rod and main bearings are included, ensuring smooth operation and proper clearances for the crankshaft and connecting rods.

This assembly comes pre-balanced, which is a significant time and labor saver during your engine build. It means the critical rotating mass has already been precisely weighted and balanced at the factory, reducing vibration and improving overall engine smoothness. Remember, this assembly 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.