Eagle Chevy 4.8/5.3 LS 4.000in Crank 58 Tth Rlctor 6.125in I-Beam 3.820in Pistons Balanced Assembly

When you're rebuilding the heart of your Chevy 4.8L or 5.3L LS engine, this balanced rotating assembly from Eagle gives you a solid foundation. What you get in this package is a fully balanced assembly featuring a 4.000-inch forged 4140 crankshaft, a 58-tooth reluctor wheel for proper engine management, and 6.125-inch 4340 I-beam connecting rods. It also includes 3.820-inch forged 4032 DSS pistons with an inverted dome design, plasma-moly file-fit piston rings, and King XP rod and main bearings. This assembly is specifically put together for naturally-aspirated racing applications, meaning it's built to handle the demands of high-RPM operation without the stress of forced induction.

The components in this assembly are well-built for performance. The 4140 forged crankshaft and 4340 I-beam rods are strong choices for racing, providing the durability needed for increased cylinder pressures and rotational forces. The 4032 forged pistons are a good match for these components, offering a balance of strength and lighter weight compared to cast pistons, which helps reduce reciprocating mass. The inclusion of 7/16-inch ARP 8740 bolts for the connecting rods means you have strong, reliable fasteners. The plasma-moly file-fit rings allow for precise gapping to match your specific engine build and desired performance. Everything comes balanced from Eagle, saving you a significant step and ensuring smooth operation right out of the box.

This balanced rotating assembly is intended for naturally-aspirated racing use. 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 the longevity and performance of your engine build.