ROTATING ASSY MITSUBISHI 98+

The Eagle Specialty Products Competition Rotating Assembly (86256860) is a comprehensive engine internal kit designed for Mitsubishi 4G63 (1998+) engines. It provides a complete bottom-end upgrade, including a high-performance forged crankshaft, forged connecting rods, and Mahle inverted dome forged pistons designed to handle increased boost and power.

This kit is precision-engineered for the Mitsubishi 4G63 engine platform, specifically catering to the 7-bolt main configuration common in later 2G DSM and Evolution models. The rotating assembly is balanced to minimize vibration and enhance durability under high-stress performance conditions.

To ensure proper installation, the assembly should be installed by a professional engine builder. The engine block must be checked for proper clearance, and the assembly should be balanced to the specific rotating mass of the provided components. Reuse of stock fasteners is not recommended; new main studs and rod bolts matching the kit's specifications should be utilized.

This assembly is specific to the 4G63 turbocharged engine found in later DSM platforms and Lancer Evolution models (Evo 4-9). It is not compatible with the 4B11T engine found in the Evolution X. Ensure your block is verified as the 7-bolt design prior to purchase.