Wiseco 6669M8675AP Wiseco Mitsubishi EVO 4-9 HD2 -86.75mm Bore 1.137in CH - Single Piston

Wiseco Mitsubishi 4G63 EVO Piston, 86.75 mm Bore, 28.88 mm Compression Height, 0.866 in. Pin Diameter, Sport Compact, Set of 1.

Piston, Mitsubishi, 4G63 EVO, 86.75 mm Bore, Sport Compact, Set of 1

Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series.

Features and Benefits: ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation; Designed and built to withstand heavy to severe duty performance applications; Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength; Forced pin oiling; Fully machined crown features; Precision ring grooves, anti-detonation groove, and additional ring seal improving features