Eagle Chevy 400 350 Mains 3.750in Crank 6.000in I-Beam Rods -16cc 4.125in Pistons Rotating Assembly

If you're building a performance Chevy 400 engine for naturally-aspirated racing, this Eagle Pro Street rotating assembly is a solid choice. It's designed to handle the demands of the track and provides a strong foundation for your build. This assembly uses 350 main journal sizes, making it compatible with a wide range of Chevy small-block engine blocks.

At the heart of this assembly is a 3.750-inch forged 4340 crankshaft, known for its strength and durability under stress. Paired with this are 6.000-inch 4340 I-beam connecting rods, which are secured with 7/16-inch ARP 8740 bolts for reliable performance. The pistons are forged 4032 DSS units with an inverted dome design, featuring a -16cc volume and a 4.125-inch bore size. They come with plasma-moly file-fit rings, allowing for precise gap adjustment to optimize sealing and performance. To complete the package, King XP rod and main bearings are included, offering excellent wear resistance and smooth operation.

This rotating assembly is a comprehensive kit for serious engine builders. Please 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 torque specifications.