Eagle Rotating Assembly Kit for Chevrolet/Pontiac LS-Series 403/408cu.in. - 4.030in Bore

If you're building a high-performance LS-series engine for serious racing, this Eagle Competition Rotating Assembly is a solid foundation. It's designed to handle the demands of competition, including boosted or nitrous applications, giving you the power and reliability you need when it counts. This kit is engineered for Chevrolet and Pontiac LS-based engines, specifically for builds targeting 403 or 408 cubic inches with a 4.030-inch bore.

At the heart of this assembly is a 4.000-inch forged 4340 steel crankshaft, known for its strength and durability under extreme stress. Paired with it are 6.125-inch H-beam connecting rods, also forged from 4340 steel, and secured with 7/16-inch ARP 8740 bolts for maximum integrity. The pistons are forged 4032 aluminum from Mahle, featuring a -12cc inverted dome design to work with the 4.030-inch bore and achieve specific compression ratios. This kit also includes plasma-moly file-fit piston rings, which allow for custom gapping to suit your build's needs, and King XP series rod and main bearings to ensure smooth rotation and proper oil clearance.

This rotating assembly fits a wide range of Chevrolet and Pontiac vehicles, including models like the Cadillac CTS, Chevrolet Camaro, Corvette, and Pontiac Firebird. It's important to note that this kit is not CARB approved and cannot be shipped to California. Ensure you consult your specific engine build plans and manufacturer instructions for proper installation and tuning to get the most out of this competition-grade rotating assembly.