Wiseco Mitsubishi 4G63 2.0L Gen 2 w/ 156mm Long Rod 87mm Bore +.080 Oversize -4 Dome Dish Piston Set

These Wiseco pistons are forged from 2618 aluminum, a material chosen for its high tensile strength, making them well-suited for the demands of serious racing and heavy-duty engine builds. They are specifically designed for the Mitsubishi 4G63 2.0L engine, featuring an 87mm bore and an +.080 oversize, which means they are 0.080 inches larger than the standard bore size. This set is configured for use with a 156mm long rod and includes a -4 dome dish, a specific design choice that affects compression ratio and combustion chamber shape.

Wiseco has incorporated several features to enhance performance and durability. The pistons include precision ring grooves, an anti-detonation groove, and additional features for improved ring seal, all contributing to better combustion efficiency and reduced blow-by. The ArmorGlide skirt coating helps reduce friction and resist seizure, while also contributing to quieter operation. The fully machined crown ensures precise combustion chamber volume, and forced pin oiling helps keep the wrist pin lubricated under extreme conditions. These pistons are built to withstand heavy to severe duty performance applications, reflecting their intended use in competitive racing environments.

This set includes four pistons, the necessary rings, and is designed for a direct fit in the specified Mitsubishi 4G63 engines. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.