Eagle Chevy 400 3.750in Crank 5.700in I-Beam Rods -16cc 4.125in Pistons Rotating Assembly

If you're rebuilding a Chevy 400 engine for naturally-aspirated racing, this Eagle Pro Street rotating assembly is a solid foundation. It bundles together the key components you need to get your short block built, saving you time and ensuring compatibility between the crank, rods, and pistons.

This assembly starts with a 3.750-inch forged 4340 crankshaft, known for its strength and durability under demanding conditions. Paired with it are 5.700-inch 4340 I-beam connecting rods, which are a popular choice for their balance of strength and weight. These rods come equipped with 7/16-inch ARP 8740 bolts, a well-known name for reliable fastener performance. The pistons are forged 4032 DSS units, featuring an inverted dome design with a -16cc volume and a 4.125-inch bore size. They come with plasma-moly file-fit rings, allowing for precise gap setting to match your engine's specific needs. To complete the package, King XP rod and main bearings are included, offering robust lubrication and wear protection.

This assembly is designed for performance builds and is not CARB approved, meaning it cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures to ensure the longevity of your new engine components.