Eagle Chevy 400 3.750in Crank 5.700in H-Beam -5cc Flat Top 4.155in Pistons Balanced Assembly

If you're building a high-performance Chevy 400 engine for serious racing, this balanced rotating assembly from Eagle is a solid foundation. It's designed to handle the demands of competition, including applications using nitrous or forced induction. This assembly gives you the core components needed to rebuild or upgrade your engine's rotating assembly with well-built parts.

At the heart of this assembly is a forged 4340 crankshaft with a 3.750-inch stroke, paired with 5.700-inch H-beam connecting rods. These rods come equipped with 7/16-inch ARP 8740 bolts, known for their strength and reliability under high stress. The pistons are forged 4032 Mahle units, featuring a -5cc flat-top design and a 4.155-inch bore size, which are crucial for achieving your desired compression ratio. The assembly also includes plasma-moly file-fit piston rings, allowing for precise gap setting to match your engine's bore and intended use. To ensure smooth operation and proper lubrication, King XP rod and main bearings are included.

This assembly comes balanced from Eagle, saving you a significant step and ensuring proper weight distribution for your rotating components. This is essential for engine longevity and performance, especially in racing environments. Please note that this assembly is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and break-in procedures.