Eagle Chevy 400 3.750in Crank 6.000in I-Beam Rods -16cc 4.185in Pistons Rotating Assembly

If you're building a street-driven Chevy 400 that you want to run on pump gas without needing race fuel, this Eagle Street & Strip rotating assembly is a solid choice. It's put together with components designed to handle naturally aspirated street use, giving you a strong foundation for your engine project. This assembly includes a 3.750-inch cast crankshaft, 6.000-inch I-beam connecting rods with ARP 8740 bolts, and 4.185-inch forged pistons with an inverted dome.

The pistons are made from 4032 aluminum, which is a good choice for street applications because it offers a good balance of strength and thermal expansion properties, helping to keep piston slap down when the engine is cold. They come with plasma-moly file-fit rings, meaning you can adjust the ring end gap to perfectly match your cylinder bore for improved sealing and performance. The I-beam connecting rods are a popular choice for street builds, offering a good strength-to-weight ratio. This assembly also includes King rod and main bearings, which are well-known for their reliability in street applications.

When putting this assembly together, remember that the plasma-moly rings are file-fit, so you'll need to check and adjust the end gap to suit your specific engine build and intended use. This is a critical step for proper engine sealing and longevity. This rotating assembly is designed for pump gas and naturally aspirated setups, making it a straightforward component for many street performance builds.