Eagle Chevy 400 3.750in Crank 5.700in I-Beam Rods -20cc 4.165in Pistons Rotating Assembly

If you're building a Chevy 400 engine for naturally-aspirated racing, this Eagle Pro Street Rotating Assembly is a solid choice. It bundles together the core components you need to get your bottom end put together, saving you time and ensuring compatibility between the major rotating parts. This assembly is designed to handle the demands of racing applications where forced induction isn't being used.

At the heart of this assembly is a forged 4340 crankshaft with a 3.750-inch stroke. Paired with it are 5.700-inch long I-beam connecting rods, also made from strong 4340 steel. These rods come equipped with 7/16-inch ARP 8740 bolts, known for their reliability in high-stress situations. The pistons are forged 4032 aluminum from Mahle, featuring an inverted dome design with a -20cc volume and a 4.165-inch bore size. They come with plasma-moly file-fit rings, giving you the flexibility to achieve a precise seal in your cylinders. To round out the assembly, King XP rod and main bearings are included, offering robust performance for your engine's critical rotating components.

This rotating assembly is a significant step up from stock components, utilizing forged materials for increased strength and durability. Remember 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 the longevity of your new engine build.