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

Eagle has built a reputation for making solid engine parts, and this balanced rotating assembly is a great example of their work for Chevy 454 engines. If you're looking to rebuild or upgrade the heart of your street vehicle, especially one that runs on pump gas and is naturally aspirated, this assembly is built for that purpose. It's a complete package designed to get your engine running strong.

This assembly starts with a 4.250-inch cast crankshaft, paired with 6.385-inch I-beam connecting rods. Those rods are secured with 7/16-inch ARP 8740 bolts, which are well-known for their strength and reliability in performance applications. For the pistons, you get hypereutectic KB flat-top pistons with a -3cc dish, sized for a 4.250-inch bore. They come with plasma-moly file-fit rings, meaning you can precisely gap them for your specific engine build, ensuring a good seal. To round it out, it includes King rod and main bearings, which are a popular choice for their durability and performance.

This is a balanced assembly, which means the crankshaft, connecting rods, pistons, rings, and bearings have been pre-balanced at the factory. This step is crucial for reducing engine vibration and ensuring smoother operation, especially at higher RPMs. It's important to 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 break-in procedures.