Eagle Chevy 400 350 Mains 3.750in Crank 5.700in H-Beam -5cc 4.165in Pistons Rotating Assembly

Built with a 3.750-inch forged 4340 steel crankshaft, this rotating assembly is ready for serious performance applications. The 4340 steel is a strong choice for crankshafts, offering good durability under high stress, which is essential when you're pushing your engine hard, especially with nitrous or forced induction. This assembly is designed for Chevy 400 blocks using 350 mains, making it a popular upgrade for those looking to build a more robust engine.

Complementing the crankshaft are 5.700-inch H-beam connecting rods, known for their strength and reliability in demanding builds. These rods are secured with 7/16-inch ARP 8740 bolts, a well-regarded fastener for their tensile strength and ability to hold tight under extreme loads. The pistons are forged ICON 4.165-inch units, featuring a -5cc flat top design and plasma-moly file-fit rings. Forged pistons are a must for high-performance engines as they can withstand higher cylinder pressures and temperatures compared to cast pistons. The file-fit rings give you the flexibility to set your ring gap precisely for your specific build, which is crucial for optimal sealing and performance, especially in boosted or nitrous applications. King XP rod and main bearings are included, offering improved performance and durability for the critical rotating components.

This assembly is a solid foundation for building a competition engine. Keep in mind that this part is not CARB approved and cannot be shipped to California. It's important to consult with your engine builder or refer to manufacturer specifications for proper installation and tuning to ensure you get the most out of this high-performance rotating assembly.