Wiseco K566M8125 Professional Series Honda B18 Forged Piston Kit 81.25mm Bore

The Wiseco K566M8125 Professional Series Piston Kit is a premium forged racing piston set designed for Honda B18 engines.

Key Specifications:

• Bore Size: 81.25mm (3.199 inches) - 0.010 oversize
• Compression Height: 30.00mm (1.185 inches)
• Wrist Pin Diameter: 21mm (0.8268 inches)
• Dome Volume: +5cc
• Compression Ratio: 11.7:1
• Average Weight: 279 grams per piston

Premium Construction Features:

• Forged from 2618 high-strength aluminum alloy for improved tensile strength and durability
• ArmorGlide skirt coating provides seizure resistance, friction reduction, and quieter operation
• Fully machined crown with precision ring grooves
• Strutted dome design for maximum structural integrity
• Engineered, forged, and machined in the USA at Wiseco's Mentor, Ohio facility

Complete Kit Includes:

• Premium piston rings (Part #8125XX)
• Wrist pins (Part #S656)
• Circlips

Wiseco Professional Series pistons represent no-expense-spared engineering designed for heavy to severe duty race builds. These pistons deliver the custom-level performance features demanded by competitive racers while providing the reliability needed for sustained high-performance operation. Ideal for Honda Integra (1994-2001) and other B-series engine applications.