Wiseco Mitsubishi 4G63 7 Bolt 1.9cc Dome 10.5:1 Piston Shelf Kit

What you get in this kit are four forged pistons designed for the Mitsubishi 4G63 engine, specifically the 7-bolt configuration. These aren't just any pistons; they're built by Wiseco for serious racers and builders who demand a lot from their engines. With a 1.9cc dome and a 10.5:1 compression ratio, these pistons are engineered to handle the stress of heavy to severe duty performance applications.

Wiseco crafts these pistons from 2618 aluminum right here in the USA, which gives them improved tensile strength for durability under high loads. You'll find precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal, all contributing to better performance and longevity. They also come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and operate more quietly. The crown of each piston is fully machined, and they feature forced pin oiling to ensure the wrist pins stay well-lubricated.

These pistons are intended for demanding race builds where reliability and performance are critical. Keep in mind that these are not CARB approved and cannot be shipped to California. For installation, always refer to the manufacturer's instructions to ensure proper fitment and assembly.