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

If you're building a naturally-aspirated LS engine for racing, this Eagle Pro Street rotating assembly is a solid foundation. It's designed to handle the demands of performance builds where every component needs to be reliable under stress. This assembly includes a forged crankshaft, connecting rods, pistons, rings, and bearings, all balanced and ready to be installed.

The heart of this assembly is the 4.000-inch forged 4140 crankshaft, built for strength and durability. It features a 58-tooth reluctor wheel, which is crucial for the engine's computer to properly manage ignition timing on LS engines. Paired with this are 6.125-inch 4340 I-beam connecting rods, known for their robust construction and ability to withstand high RPMs. These rods come with 7/16-inch ARP 8740 bolts, a trusted name in high-strength fasteners, ensuring a secure connection.

The pistons are forged 4032 DSS with an inverted dome design, featuring a -15cc dish to help achieve a desired compression ratio, especially when paired with specific cylinder heads. They come with plasma-moly file-fit rings, allowing for precise gap setting to optimize sealing and performance. To complete the package, King XP rod and main bearings are included, offering excellent wear resistance and smooth operation. This assembly is balanced, saving you a significant step in the engine building process.