Eagle Jeep 4.2L 258 3.895in Cast Crank 6.123in I-Beam Rods -10.8cc 3.935in Pistons Rotating Assembly

This Eagle rotating assembly starts with a 3.895-inch cast steel crankshaft, a solid foundation for your Jeep 4.2L 258 engine build. It's designed for street use and naturally aspirated applications, making it a great choice if you're looking to refresh or upgrade your engine for reliable performance on pump gas.

Paired with this crank are 6.123-inch I-beam connecting rods made from 5140 steel, which are secured with 3/8-inch ARP 8740 bolts. The assembly includes 3.935-inch forged pistons from ICON, featuring an inverted dome design with a -10.8cc volume, which helps achieve a specific compression ratio. These pistons come with plasma-moly file-fit rings, allowing for precise gap adjustment during installation to ensure a good seal. To complete the package, King rod and main bearings are included, offering well-built support for the rotating assembly.

This assembly is intended for street applications and is not CARB approved, meaning it cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and tuning procedures to get the most out of this rotating assembly.