Eagle Chevy LS1 4.000in Crank 58 Tth Reluctor 6.125in I-Beam Rods 3.900in Pistons Rotating Assembly

If you're building a naturally-aspirated LS1 engine for racing, this Eagle Pro Street rotating assembly is a solid foundation. It bundles together the critical rotating components you need to get your build underway, ensuring compatibility and a strong start for your project.

This assembly starts with a 4.000-inch forged 4140 crankshaft, providing the stroke needed for increased displacement. Paired with this are 6.125-inch I-beam connecting rods made from strong 4340 steel, secured with 7/16-inch ARP 8740 bolts for reliable performance under stress. The pistons are forged 4032 DSS flat-tops with a -5cc dish, designed for a 3.900-inch bore, and come with plasma-moly file-fit rings for good sealing. To complete the package, King XP rod and main bearings are included, offering robust protection for these hard-working components.

This assembly is specifically configured for LS1 engines with a 58-tooth reluctor wheel. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and balancing procedures.