This Wiseco Professional Series piston is forged from 2618 aluminum for Mitsubishi 4G63 engines. It has an 85.50 mm bore and a 28.70 mm compression height with a -12cc dish. Professional Series pistons are aimed at heavy to severe duty race builds.

Wiseco 6674M855AP Piston Features:

• Made for Mitsubishi 4G63 engines
• 85.50 mm bore diameter with a 28.70 mm compression height
• -12cc dish volume
• Forged from 2618 aluminum alloy with a strutted forging design
• ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
• 0.866 in. 5115 Steel floating wrist pin included
• Piston rings included: 1.0 mm top, 1.2 mm second and 2.8 mm oil ring
• Fully machined crown with precision ring grooves and an anti-detonation groove
• Forced pin oiling feeds the wrist pin bore
• Sold individually