Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.898in Pistons Balanced Assembly

This Eagle Pro Street rotating assembly starts with a 4.000-inch forged 4140 crankshaft, featuring a 58-tooth reluctor wheel crucial for LS engine management systems. This assembly is specifically balanced, meaning the critical rotating components have been precisely weighted to minimize vibration and ensure smooth operation at higher RPMs, which is essential for performance builds.

The connecting rods are 6.125-inch long, made from strong 4340 I-beam forgings and secured with 7/16-inch ARP 8740 bolts. These rods are built to handle the stresses of naturally-aspirated racing applications. Paired with these rods are forged 4032 DSS flat-top pistons, measuring 3.898 inches in diameter and featuring a -5cc dish. These pistons come with plasma-moly file-fit rings, allowing for precise gap setting to optimize sealing and performance. The assembly also includes King XP rod and main bearings, known for their durability and performance under load.

This balanced rotating assembly is a solid foundation for a high-performance LS1 engine build, particularly for those focused on naturally-aspirated racing. Please note that this assembly is not CARB approved and cannot be shipped to California. Always consult manufacturer instructions for proper installation and break-in procedures.