Wiseco Mitsubishi 4G63 86.50 mm Bore 28.70 mm CH -4.00 CC Piston Set

What you get here is a set of four forged pistons from Wiseco, specifically made for the Mitsubishi 4G63 engine. These aren't your average pistons; they're built with serious racing and performance builds in mind, designed to handle the kind of stress that comes with heavy to severe duty applications. The bore size is 86.50 mm, and they feature a compression height of 28.70 mm with a -4.00 cc dish volume in the crown.

Wiseco crafts these pistons from 2618 aluminum right here in the USA, which gives them improved tensile strength for durability under high loads. They've got precision ring grooves, an anti-detonation groove, and other features to help seal the rings better, keeping combustion pressure where it belongs. You'll also notice the ArmorGlide skirt coating, which helps reduce friction and resist seizure, all while keeping things quieter. The fully machined crown and forced pin oiling are just more details showing how these are built for performance.

These pistons are intended for demanding race builds where every component needs to perform reliably under extreme conditions. Keep in mind that these are not CARB approved and cannot be shipped to California. For builders aiming for maximum performance and durability in their 4G63 engine, this set is a solid choice.