Eagle Chevy 400 350 Mains 3.750in Crank 6.000in H-Beam -5cc 4.155in Pistons Rotating Assembly

If you're building a high-performance Chevy engine for serious competition, this Eagle rotating assembly is a solid foundation. It's designed for demanding applications like racing, including those using nitrous or forced induction. This assembly includes a forged 4340 crankshaft with a 3.750-inch stroke, paired with 6.000-inch H-beam connecting rods featuring 7/16-inch ARP 8740 bolts. The pistons are forged 4032 Icon flat-tops with a -5cc dish, measuring 4.155 inches in diameter, and come with plasma-moly file-fit rings. King XP rod and main bearings are also included to ensure smooth operation and durability.

This assembly is well-built for the stresses of racing. The forged 4340 crank and H-beam rods are strong choices for handling increased cylinder pressures and RPMs. The Icon pistons are made from 4032 aluminum, which offers good thermal expansion characteristics for a tighter piston-to-wall clearance, reducing noise and improving sealing. The plasma-moly file-fit rings give you the flexibility to achieve a precise fit in your cylinders, which is crucial for optimal compression and oil control. King XP bearings are known for their robust construction and ability to handle heavy loads.

When putting this assembly into your engine block, remember that the file-fit rings will require careful measurement and adjustment to achieve the correct gap for your specific application. This rotating assembly is intended for competition use and is not CARB approved, meaning it cannot be shipped to California. Ensure you have the correct machine work done on your block and heads to match the specifications of this high-performance rotating assembly for the best results.