This Wiseco Professional Series piston is forged from 2618 aluminum for Honda R18A engines, including turbocharged builds. It has an 81.50 mm bore and a 28.74 mm compression height with a -10cc dish. Professional Series pistons are aimed at heavy to severe duty race builds.

Wiseco 6672M815AP Piston Features:

• Made for Honda R18A engines
• 81.50 mm bore diameter with a 28.74 mm compression height
• -10cc dish volume
• Forged from 2618 aluminum alloy with a slab side forging design
• ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
• 0.787 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