Eagle Chevy 4.8/5.3 LS 4.000in Crank 58 Tth Relctr 6.125in I-Beam 3.810in Pistons Balanced Assembly

If you're building a naturally-aspirated LS engine for racing, this balanced rotating assembly from Eagle is a solid choice for your Chevy 4.8 or 5.3. It includes a forged 4.000-inch crankshaft, 6.125-inch I-beam connecting rods with ARP 7/16-inch bolts, and 3.810-inch flat-top pistons. This assembly comes balanced from the factory, saving you a significant step and cost during your engine build.

The crankshaft is forged from 4140 steel, and the connecting rods are made from strong 4340 steel, both built to handle the demands of racing. The pistons are forged DSS 4032 aluminum with a -5cc dish and come with plasma-moly file-fit rings, which offer improved sealing and durability. King XP rod and main bearings are also included, providing reliable lubrication and wear resistance for the rotating assembly.

This assembly is specifically designed for naturally-aspirated racing applications. Please note that this part is not CARB approved and cannot be shipped to California. It's important to check all manufacturer instructions before installation to ensure proper fitment and performance.