This Wiseco Professional Series piston set is forged from 2618 aluminum for Honda B16A engines. Each of the 4 pistons has an 81.50 mm bore and a 30.10 mm compression height with a +5cc dome. Professional Series pistons are aimed at heavy to severe duty race builds.

Wiseco K566M815AP Piston Set Features:

• Made for Honda B16A engines
• 81.50 mm bore diameter with a 30.10 mm compression height
• +5cc dome volume
• Forged from 2618 aluminum alloy with a strutted forging design
• ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
• 0.827 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
• Set of 4 pistons