Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.913in Pistons Balanced Assembly

Eagle is well-known for building strong rotating assemblies, and this Pro Street balanced assembly is a prime example for your Chevy LS1 engine. If you're looking to rebuild or upgrade your LS1 for naturally-aspirated racing, this balanced assembly is designed to handle the demands. It includes a forged 4.000-inch crankshaft, 6.125-inch I-beam connecting rods with ARP 7/16-inch bolts, and 3.913-inch flat-top pistons with a -5cc dish. This combination is balanced at the factory, saving you a significant step in the engine building process.

The crankshaft is forged from 4140 steel, offering a solid foundation for high-performance applications. The connecting rods are made from robust 4340 steel, known for its strength and durability under stress, and are paired with high-quality ARP 8740 bolts to ensure they stay secured. The pistons are forged from 4032 DSS material, featuring a flat-top design with a -5cc dish, which is ideal for naturally-aspirated builds and works well with the included plasma-moly file-fit piston rings. King XP rod and main bearings are also included, providing reliable lubrication and wear protection for critical rotating components.

This assembly is balanced, meaning the crankshaft, connecting rods, pistons, and rings are precisely weighted and matched to minimize vibration and improve engine smoothness. This is a crucial step for engine longevity and performance, especially in racing applications. Please note that this assembly is not CARB approved and cannot be shipped to California. It's recommended to consult with your engine builder or refer to manufacturer instructions for specific installation details and any additional components you may need to complete your engine build.