Wiseco K673M81 Professional Series Honda B16 Piston Set 81mm Bore

The Wiseco K673M81 Professional Series piston set represents no-expense-spared engineering designed for serious racers and engine builders who demand maximum performance and durability in heavy to severe duty race builds. This complete piston set features an 81.00mm bore and 30.00mm compression height, specifically engineered for Honda B16 engines.

Premium Construction Features:

• Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
• ArmorGlide® Skirt Coating provides seizure resistance, friction reduction, and quieter operation
• Forged from high silicon, low expansion aluminum offering superior strength, reduced weight, improved heat transfer, and longer life with diamond turned finish from CNC computer controlled turning centers
• 0.8268 inch (21mm) pin diameter for maximum strength
• Provided with premium piston rings for optimal sealing and performance

Complete Set Includes:

• High-quality piston rings
• Wrist pins
• Circlips

Valve pocket designs allow maximum flow around the valve for use with oversized valves and high lift cams, while piston crown shapes promote maximum intake charge efficiency through scavenging mixture cross flow during intake and exhaust valve overlap. Designed and built in the USA for racers who refuse to compromise on quality or performance.