Wiseco Mitsu Evo 4-9 4G63 Stroker Asymmetric Skirt Bore 87.00mm - Size +.080 - CR 9.5 Piston Set

This Wiseco piston set includes four forged pistons, designed for Mitsubishi 4G63T engines found in Evo 4-9 models. These are specifically built for stroker applications, featuring an 87.00mm bore and a 9.5:1 compression ratio. They are constructed from 2618 aluminum, a well-known material for its improved tensile strength, making them suitable for demanding performance builds.

Wiseco has incorporated several features to enhance durability and performance. The pistons come with precision ring grooves, an anti-detonation groove, and additional ring seal features to ensure proper combustion. They also include an ArmorGlide skirt coating, which helps reduce friction, resist seizure, and operate more quietly. The fully machined crown and forced pin oiling further contribute to their ability to handle heavy to severe duty racing conditions. These pistons are forged and machined in the USA.

This set is intended for serious racers and builders who are pushing their engines hard. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly details.