Wiseco Mitsu 4G64 w/4G63 Heads 10.5:1 E85 Piston Shelf Stock Kit

If you're building a high-performance Mitsubishi 4G64 engine with 4G63 heads and planning to run E85 fuel, this Wiseco piston set is a solid choice. These pistons are built for serious racers and builders who need parts that can handle the demands of heavy to severe duty race applications. They're designed to give you the performance and durability you need when pushing your engine to its limits.

Wiseco forges and machines these pistons in the USA from 2618 aluminum, which gives them improved tensile strength for reliable operation under stress. You'll find precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. The pistons also come with an ArmorGlide skirt coating. This coating helps reduce friction, makes operation quieter, and resists seizing, all of which contribute to a longer-lasting, more efficient engine. The fully machined crown also plays a role in performance and durability, and the forced pin oiling ensures the wrist pins stay well-lubricated.

This kit includes everything you need for a set of four pistons, with a bore size of 86.50 mm. It's important to 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.