Eagle Chevy 400 3.750in Crank 6.000in H-Beam -16cc 4.155in Pistons Balanced Assembly

Eagle is well-known for building robust engine components, and this balanced rotating assembly is a prime example of their commitment to performance. If you're building a Chevy 400 engine for serious use, whether it's for racing, nitrous, or forced induction, this assembly is designed to handle the demands. It takes the guesswork out of matching critical rotating parts, ensuring they work together harmoniously from the start.

This assembly includes a forged 4340 steel crankshaft with a 3.750-inch stroke, paired with 6.000-inch H-beam connecting rods. These rods are secured with strong 7/16-inch ARP 8740 bolts, a name you can trust for reliability under stress. The pistons are forged 4032 aluminum from Mahle, featuring an inverted dome design with a -16cc volume and a 4.155-inch bore size, which helps achieve a specific compression ratio for your build. The assembly also comes with plasma-moly file-fit piston rings and King XP rod and main bearings, all balanced as a complete unit to minimize vibration and improve engine smoothness.

Because this assembly is balanced from the factory, it saves you significant time and cost compared to having a machine shop balance the components individually. This is a crucial step for high-performance engines to ensure longevity and optimal power delivery. Please note that this assembly is not CARB approved and cannot be shipped to California. Always consult your engine builder or manufacturer's specifications for proper installation and compatibility with your specific application.