Wiseco Mitsu 4G64 w/4G63 Head 85mm Bore 10.5:1 E85 Single Piston

Wiseco is well-known for making strong internal engine components, and their Professional Series forged pistons are a prime example. This particular piston is designed for Mitsubishi 4G64 engines when using a 4G63 cylinder head, with an 85mm bore and a 10.5:1 compression ratio, making it suitable for E85 fuel. These are built for serious racers and builders who need parts that can handle heavy to severe duty applications without question.

Crafted in the USA from 2618 aluminum, these pistons offer improved tensile strength, which is crucial for high-performance engines. They feature precision ring grooves, an anti-detonation groove, and other features designed to improve ring seal. The piston crown is fully machined, and they include forced pin oiling to keep things well-lubricated. Additionally, the ArmorGlide skirt coating helps reduce friction and noise, while also resisting seizure, all contributing to a more durable and reliable engine build.