Eagle Chevy 400 350 Mains 3.875in Crank 6.000in H-Beam Stroker 4.125in Pistons Balanced Assembly

If you're building a serious performance Chevy 400 engine that needs to handle extreme conditions, this balanced rotating assembly from Eagle is a solid choice. It's designed to take on exotic fuels, heavy nitrous use, and high boost applications, giving you the foundation for a truly powerful build. This assembly is specifically configured for a 350 main journal size, making it a direct fit for many popular Chevy blocks.

At the heart of this assembly is a forged 4340 crankshaft with a 3.875-inch stroke, paired with 6.000-inch H-beam connecting rods. These rods are built for extreme duty and come with 7/16-inch ARP 2000 bolts, known for their strength and reliability under high stress. The pistons are forged 2618 JE units, featuring a -10.8cc dome and a 4.125-inch bore size, complete with plasma-moly file-fit rings for precise sealing. To ensure smooth operation and durability, the assembly includes King XP rod and main bearings.

This entire rotating assembly comes balanced from Eagle, saving you a significant step and ensuring proper engine operation right out of the box. 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 get the most out of this heavy-duty rotating assembly.