Wiseco Mitsubishi 4G63 86.75 mm Bore 34.87 mm CH 0.00 CC Piston Set

Forged from 2618 aluminum, these Wiseco pistons are built for the demands of serious racing and heavy-duty engine builds. The 86.75 mm bore size is specific for certain 4G63 engine configurations, and the 34.87 mm compression height ensures proper piston-to-valve clearance and deck height when paired with the correct connecting rods and crankshaft.

Wiseco machines these pistons in the USA, incorporating features like precision ring grooves, anti-detonation grooves, and additional ring seal improvements to ensure reliable performance under extreme conditions. The crown is fully machined for accuracy, and forced pin oiling helps keep the wrist pin lubricated. For added durability and reduced friction, the skirts are coated with ArmorGlide, which helps resist seizure, lowers friction, and contributes to quieter operation.

This set includes four pistons, designed to withstand severe duty performance applications. 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 procedures.