Wiseco Mitsubishi 4G63 86.25 mm Bore 28.70 mm CH -4.00 CC Piston Set

Forged from 2618 aluminum right here in the USA, these Wiseco pistons are built for the demanding world of serious racing and engine building. The 86.25 mm bore size is a specific measurement that matters when you're aiming for maximum displacement and performance from your Mitsubishi 4G63 engine.

Wiseco didn't cut any corners here. You'll find precision ring grooves, anti-detonation features, and other design elements aimed at improving ring seal and overall durability under extreme conditions. The pistons also come with an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and keep things running quieter. The fully machined crown and forced pin oiling are details that show these are made for heavy to severe duty applications where reliability is key.

This set includes four pistons, each with a 28.70 mm compression height and a 0.866-inch pin diameter, ready to be installed in your performance 4G63 build. Keep in mind these are not CARB approved and cannot be shipped to California.