This Wiseco Professional Series piston set is forged from 2618 aluminum for Honda B16A engines, including turbocharged builds. Each of the 4 pistons has an 81.00 mm bore and a 30.00 mm compression height with a -8cc dish. Professional Series pistons are aimed at heavy to severe duty race builds.

Wiseco K673M81 Piston Set Features:

• Made for Honda B16A engines
• 81.00 mm bore diameter with a 30.00 mm compression height
• -8cc dish volume
• Forged from 2618 aluminum alloy
• ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
• 0.8268 in. 9310 Steel floating wrist pin included
• Piston rings included: 1 mm top, 1.2 mm second and 3 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