Eagle Mitsubishi 4G63 89-92 3.937in Crank 5.900in H-Beam -19cc 85.5mm Pistons Rotating Assembly

If you're building a high-performance Mitsubishi 4G63 engine for serious racing, especially with forced induction or nitrous, a strong rotating assembly is the heart of the operation. This Eagle competition rotating assembly is designed to handle the extreme demands of these applications, providing a solid foundation for your build. It brings together key components that work in unison to reliably transfer power from combustion to the drivetrain.

This assembly features a 3.937-inch forged 4340 crankshaft, known for its strength and durability under high stress. Paired with this are 5.900-inch H-beam connecting rods, a popular choice for their robust design, which come equipped with 3/8-inch ARP 2000 bolts. These bolts are a significant upgrade, offering superior clamping force and reliability compared to standard fasteners. The pistons are forged 4032 aluminum from Mahle, featuring an inverted dome design with a -19cc dish to achieve a specific compression ratio, and they come with plasma-moly file-fit rings. To complete the package, King XP rod and main bearings are included, offering excellent wear resistance and performance.

This is a comprehensive rotating assembly built for competition. It's important to note that this assembly is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper assembly and break-in procedures to ensure optimal performance and longevity.