Eagle Chevy 4.8/5.3 LS 4.000in Crank 24 Tth Rlctor 6.125in I-Beam 3.800in Pistons Balanced Assembly

If you're building a naturally-aspirated LS engine for racing, this balanced rotating assembly from Eagle is a solid foundation. It's designed to handle the demands of performance applications, giving you a strong starting point for your build.

This assembly includes a 4.000-inch forged 4140 crankshaft, which is a strong piece for increased displacement and power. It's paired with 6.125-inch 4340 I-beam connecting rods, known for their durability in performance builds, and secured with 7/16-inch ARP 8740 bolts. The pistons are forged 4032 DSS with an inverted dome design, measuring 3.800 inches in diameter, and come with plasma-moly file-fit rings. To ensure smooth operation and proper oil clearance, the assembly includes King XP rod and main bearings.

This entire assembly comes balanced from the factory, saving you a significant step and ensuring proper rotating assembly balance right out of the box. This is crucial for engine longevity and performance, especially at higher RPMs. Please note that this assembly is not CARB approved and cannot be shipped to California.