Wiseco Mitsu 4G64 w/4G63 Heads 10.5:1 E85 Piston Shelf Stock Kit

If you're building a serious performance Mitsubishi 4G64 engine that's going to run on E85 fuel, this Wiseco forged piston set is a solid choice. These pistons are specifically designed for the 4G64 block when used with 4G63 cylinder heads, featuring an 85.25 mm bore and a 10.5:1 compression ratio tailored for E85. Wiseco has packed these pistons with features aimed at serious racers and builders who demand both performance and durability.

Crafted from 2618 aluminum in the USA, these pistons are forged and machined for improved tensile strength, which is crucial for handling the stresses of high-performance applications. You'll find precision ring grooves, anti-detonation grooves, and other features designed to enhance ring seal and prevent detonation. The fully machined crown ensures accuracy, and the forced pin oiling system helps keep the wrist pins lubricated under extreme conditions. Plus, the ArmorGlide skirt coating helps reduce friction, resist seizure, and operate more quietly, making them suitable for heavy to severe duty race builds.

This kit includes a set of four pistons, complete with premium rings, ready for installation in your performance engine build. Keep in mind 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.