Wiseco Mitsu 4G63 2.3L 85.25 Bore .010 Oversized 10.62:1 CR E85 Series Piston Shelf Stock Kit

If you're building a high-performance Mitsubishi 4G63 engine for serious racing or severe duty applications, a strong set of pistons is crucial. This Wiseco E85 Series piston kit is designed to handle the demands of boosted, high-ethanol fuel builds, offering improved strength and durability over stock components. These are specifically sized at 85.25mm, which is .010 inches larger than the standard bore, intended for engines that have been bored out to accommodate them.

Crafted from 2618 aluminum in the USA, these pistons are forged for superior tensile strength, making them well-suited for the stresses of racing. The fully machined crown features precise ring grooves, anti-detonation grooves, and additional features to improve ring seal, which is vital for maintaining compression and preventing blow-by under high boost. They also come with forced pin oiling to ensure the wrist pins stay well-lubricated, and the ArmorGlide skirt coating helps reduce friction and resist seizure, contributing to quieter operation and longer life.

This kit includes four pistons, ready to be installed in your 4G63 engine. Remember that these pistons are designed for specific performance builds and are not CARB approved, meaning they cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.