Eagle Chevy 400 3.750in Crank 6.000in H-Beam -5cc Flat Top 4.165in Pistons Balanced Assembly

This is a balanced rotating assembly from Eagle, specifically designed for Chevy 400 engines. It includes a forged 4340 crankshaft with a 3.750-inch stroke, 6.000-inch H-beam connecting rods featuring 7/16-inch ARP 8740 bolts, and Mahle forged 4032 flat-top pistons with a -5cc dish and a 4.165-inch bore. This assembly is balanced and comes with plasma-moly file-fit rings and King XP rod and main bearings, making it ready for serious performance builds.

This rotating assembly is built for demanding applications, including racing use with nitrous or forced induction. The forged 4340 crank and H-beam rods offer substantial strength to handle increased cylinder pressures and RPMs. The Mahle pistons are forged from 4032 aluminum, known for its good thermal expansion properties, and feature a flat-top design with a -5cc dish to help achieve a desired compression ratio. The included file-fit rings allow for precise gapping to match your specific engine build and intended use, while the King XP bearings are well-regarded for their durability and performance under load.

When installing this assembly, ensure all components are meticulously cleaned and properly lubricated according to manufacturer specifications. Proper balancing is crucial for engine longevity and smooth operation, and this assembly comes balanced from Eagle. Remember that this assembly is not CARB approved and cannot be shipped to California. Always consult your engine builder or a qualified mechanic for specific installation procedures and recommendations for your particular build.