Eagle Chevy 400 3.750in Crank 5.700in H-Beam -23cc 4.155in Pistons Balanced Assembly

Eagle is well-known for building robust rotating assemblies that can handle serious performance demands. This balanced assembly is built for your Chevy 400 engine, designed to be a strong foundation for high-horsepower builds, including those using nitrous or forced induction. It's a complete package that takes the guesswork out of matching critical internal engine components.

At the heart of this assembly is a forged 4340 steel crankshaft with a 3.750-inch stroke. Paired with it are 5.700-inch H-beam connecting rods, which are known for their strength and reliability under stress. These rods use 7/16-inch ARP 8740 bolts, a popular choice for their durability and consistent clamping force. The pistons are forged 4032 aluminum from Icon, featuring an inverted dome design with a -23cc volume and a 4.155-inch bore size. They come with plasma-moly file-fit rings, giving you the flexibility to set your ring gap precisely for your application. To round out the assembly, King XP rod and main bearings are included, offering excellent wear resistance and performance.

This assembly comes balanced from Eagle, which is a crucial step for smooth engine operation and longevity, especially at higher RPMs. It’s important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures to ensure optimal performance and durability.