Eagle Chevy 400 3.750in Crank 5.700in I-Beam Rods -7cc Flat Top 4.165in Pistons Balanced Assembly

This balanced rotating assembly from Eagle is designed for Chevy 400 engines, specifically for street vehicles running on pump gas and naturally aspirated setups. What you get in this package is a complete rotating assembly ready to be installed. It includes a 3.750-inch cast crankshaft, 5.700-inch I-beam connecting rods fitted with 3/8-inch ARP 8740 bolts, and a set of hypereutectic Speed Pro flat-top pistons with a -7cc dish. The pistons are paired with plasma-moly standard gap rings, ensuring a good seal. You also receive King rod and main bearings, a damper, and a flexplate, making this a comprehensive solution for rebuilding or upgrading your engine's core rotating components.

The components in this assembly are chosen for their suitability in street performance applications. The hypereutectic pistons offer a good balance of strength and weight for everyday driving and occasional spirited use, while the plasma-moly rings are known for their durability and sealing capabilities. The inclusion of ARP 8740 bolts for the connecting rods signifies a step up in reliability over standard fasteners, important for handling the stresses of engine operation. The King bearings are a well-regarded choice for consistent lubrication and wear resistance. This balanced assembly means the critical rotating parts have been precisely weighted and matched at the factory, which is crucial for reducing engine vibration and improving overall smoothness and longevity.

When considering this assembly for your Chevy 400, remember that it is not CARB approved and cannot be shipped to California. It's important to verify that this assembly meets your local emissions regulations. This kit provides the essential rotating components, but you will still need to source other engine parts like gaskets, seals, and potentially cylinder heads to complete your engine build.