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

If you're building a street-driven Chevy 454 that runs on pump gas and doesn't use forced induction or nitrous, this balanced rotating assembly from Eagle is a solid choice. It's designed to handle the demands of a naturally aspirated street application, giving you a strong foundation for your engine rebuild. This assembly includes all the key components you need to get your short block started, all balanced together for smoother operation right out of the box.

At the heart of this assembly is a 4.250-inch cast crankshaft, paired with 6.385-inch I-beam connecting rods. These rods are secured with 7/16-inch ARP 8740 bolts, known for their strength and reliability in performance applications. The pistons are forged 4032 aluminum from Mahle, featuring a -3cc flat top design and a 4.280-inch bore size. They come with plasma-moly file-fit rings, meaning you can precisely gap them to your specific engine build for optimal performance and sealing. King rod and main bearings are also included, providing well-built support for the rotating assembly.

This assembly is balanced as a complete unit by Eagle, which saves you a significant step and ensures the components work well together. Keep in mind that this assembly is not CARB approved and cannot be shipped to California. For a complete engine build, you'll need to source other components like cylinder heads, camshaft, oil pump, and timing set.