Eagle Chevy 400 350 Mains 3.750in Crank 5.700in H-Beam -5cc 4.125in Pistons Rotating Assembly

Built with a 3.750-inch forged 4340 steel crankshaft, this Eagle rotating assembly is designed for serious performance. The 4340 steel is a strong material that can handle the stresses of high-RPM operation and significant power adders like nitrous and forced induction, making it a solid choice for racing applications. This assembly is configured for Chevy 400 blocks using 350 mains, a common modification for builders looking to increase displacement and power potential.

Complementing the robust crankshaft are 5.700-inch H-beam connecting rods. These rods are known for their strength and are paired with 7/16-inch ARP 8740 bolts, ensuring a secure and reliable connection under extreme loads. The pistons are forged 4032 aluminum from Mahle, featuring a -5cc flat top design with a 4.125-inch bore. This piston choice, along with the included plasma-moly file-fit rings, allows for precise gap setting to optimize performance and durability, especially in boosted or nitrous applications. The assembly also comes complete with King XP rod and main bearings, offering well-built lubrication surfaces for smooth operation.

This rotating assembly is a comprehensive package for anyone rebuilding or upgrading a Chevy engine for competitive use. It's important to note that this assembly is not CARB approved and cannot be shipped to California due to emissions regulations. Always consult manufacturer instructions for proper installation and break-in procedures.