Eagle Pontiac 400 4.250in Crank 6.800in I-Beam Rods -6cc Flat Top 4.185in Pistons Balanced Assembly

If you're building a Pontiac 400 engine for serious performance, this balanced rotating assembly from Eagle is a solid foundation. It's designed to handle the demands of racing, including applications using nitrous or forced induction. This assembly gives you the core components needed to rebuild your engine's bottom end with parts that are balanced and ready to go.

At the heart of this assembly is a 4.250-inch cast crankshaft, paired with 6.800-inch I-beam connecting rods. These rods are equipped with 7/16-inch ARP 8740 bolts, known for their strength and reliability under high stress. The pistons are forged 4032 aluminum from Mahle, featuring a -6cc flat top design and a 4.185-inch bore size. They come with plasma-moly file-fit rings, which allow for precise gap setting to match your specific engine build. To complete the package, King rod and main bearings are included, offering well-built performance for smooth operation.

This assembly is balanced from the factory, saving you a significant step in the engine building process. It's important to note 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.