Eagle Chevy 400 3.750in Crank 6.000in H-Beam -16cc 4.125in Pistons Rotating Assembly

Starting with the forged 4340 steel crankshaft, this Eagle rotating assembly is built for serious performance. The 3.750-inch stroke is paired with 6.000-inch H-beam connecting rods, featuring 7/16-inch ARP 8740 bolts. This combination is a popular choice for Chevy 400 engines looking to handle increased stress, whether from forced induction or nitrous oxide systems.

The included DSS pistons are forged from 4032 aluminum and feature an inverted dome design with a -16cc volume, which is crucial for achieving specific compression ratios when combined with your cylinder heads. These pistons come with plasma-moly file-fit rings, allowing for precise gap setting to match your engine's bore and intended use. King XP rod and main bearings are also part of this comprehensive package, offering robust lubrication and wear resistance under demanding conditions.

This assembly is designed for competition use and is not CARB approved, meaning it cannot be shipped to California. It's a well-built foundation for a high-performance engine build where reliability and strength are paramount.