Eagle Chevy 4.8/5.3 LS 4.000in Crank 58 Tth Rlctor 6.125in I-Beam 3.780in Pistons Balanced Assembly

If you're building a naturally-aspirated LS engine for racing, a balanced rotating assembly like this one from Eagle is a solid foundation. This assembly includes a forged 4.000-inch crankshaft, 6.125-inch I-beam connecting rods with ARP 7/16-inch bolts, and 3.780-inch inverted dome pistons designed for a 58-tooth reluctor wheel. It's all balanced at the factory, saving you a significant step and ensuring your engine runs smoothly.

The crankshaft is forged from 4140 steel, offering strength for demanding applications. The connecting rods are made from strong 4340 I-beam forgings, paired with reliable ARP 8740 bolts to keep them secured under stress. The pistons are forged from 4032 material, featuring an inverted dome design with a -15cc dish and come with plasma-moly file-fit rings, which are known for their durability and good sealing. This assembly also includes King XP rod and main bearings, which are well-regarded for their performance in high-stress environments.

This balanced rotating assembly is specifically intended for naturally-aspirated racing use. Please note that this part is not CARB approved and cannot be shipped to California. It's important to verify fitment for your specific LS 4.8L or 5.3L engine application.