Eagle Mitsubishi 4G63 89-92 3.700in Crank 5.900in H-Beam -14cc 85.5mm Pistons Rotating Assembly

This Eagle rotating assembly gives you the core components to rebuild or upgrade the heart of your Mitsubishi 4G63 engine from 1989-1992. You get a strong 3.700-inch forged 4340 crankshaft, a set of 5.900-inch H-beam connecting rods fitted with 3/8-inch ARP 2000 bolts, and 85.5mm forged 2618 Mahle pistons with an inverted dome design that creates a -14cc volume. It also includes plasma-moly file-fit piston rings and King XP rod and main bearings, so you have a solid foundation for a high-performance build.

Eagle designed this assembly for serious competition, making it well-suited for applications involving nitrous oxide or forced induction like turbocharging or supercharging. The forged 4340 steel crankshaft and H-beam connecting rods are built to handle significant stress, while the Mahle pistons are forged from 2618 aluminum, a material known for its strength and ability to withstand high temperatures and pressures. The ARP 2000 bolts are a strong choice for connecting rods, ensuring they stay securely fastened under load. The plasma-moly rings are designed for durability and proper sealing, and the King XP bearings are a popular choice for performance engines, offering good wear resistance and oil clearance.

This is a comprehensive package for building a robust engine. Remember that the piston rings are file-fit, meaning they may require adjustment to achieve the correct gap for your specific application, which is common for high-performance builds. Also, be aware that this assembly is not CARB approved and cannot be shipped to California. Always consult your engine builder or manufacturer's instructions for proper installation and assembly procedures.