Wiseco Mitsubishi 4G63 86.25 mm Bore 28.70 mm CH 1.90 CC Piston Set

If you're building a high-performance Mitsubishi 4G63 engine for serious racing, Wiseco's Professional Series forged pistons are a solid choice. These aren't your average pistons; they're designed from the ground up for heavy to severe duty applications where reliability and strength are critical. Wiseco machines these pistons from 2618 aluminum right here in the USA, giving them improved tensile strength to handle the extreme pressures of racing.

You'll find precision ring grooves, anti-detonation grooves, and other features aimed at improving ring seal, which is key for consistent power and engine longevity. They also come with an ArmorGlide skirt coating. This coating helps reduce friction, resist seizure, and makes for quieter operation, all important factors when you're pushing an engine to its limits. The fully machined crown and forced pin oiling further add to their durability and performance capabilities, making them well-suited for demanding race builds.

This set includes four pistons, each with an 86.25 mm bore and a 28.70 mm compression height. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For builders focused on maximum performance and durability in a 4G63, this Wiseco set is a well-built option.