Wiseco Mitsubishi 4G63 86.50 mm Bore 34.87 mm CH -9.00 CC Piston Set

Wiseco is well-known for making strong internal engine components, especially for high-performance applications. This Professional Series piston set is a prime example, designed for serious racers and builders who push their Mitsubishi 4G63 engines hard. If you're building a serious performance engine, these pistons are made to handle the demands of heavy to severe duty race builds.

These pistons are forged and machined in the USA from 2618 aluminum, which gives them improved tensile strength needed for high-stress environments. They feature precision ring grooves, an anti-detonation groove, and other features to improve ring seal. You also get an ArmorGlide skirt coating, which helps resist seizure, reduces friction, and makes for quieter operation. The fully machined crown and forced pin oiling are details that show these are built for serious performance.

This set includes four pistons, each with an 86.50 mm bore and a 34.87 mm compression height. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are designed for sport compact applications and are a solid choice for anyone rebuilding their engine for racing or extreme performance use.