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This Wiseco Professional Series forged piston is specified for Mitsubishi 4G63 EVO applications with an 85.50mm bore and +0.020 oversize; supplied as a single forged piston. Built from 2618 aluminum, the Professional Series emphasizes precision ring grooves, anti-detonation features, ArmorGlide skirt coating for seizure resistance, and forced pin oiling. It is intended for heavy-duty race builds where premium piston features are required.
Wiseco Mitsu Evo 4-9 HD2 Asymmetric Skirt Gas Ported Bore 85.50mm - Size +.020 - CR 10.5 - Single
