Wiseco K728M8625 Professional Series Forged Piston Kit 86.25mm Bore Subaru FA20 Direct Injection -16cc

The Wiseco K728M8625 Professional Series forged piston kit is engineered for serious racers and builders who demand no-expense-spared performance and durability in their Subaru FA20 direct injection builds. The -16cc dish design allows builders to optimize compression ratios for high-boost forced induction applications.

Advanced Construction and Materials:

• Forged and machined in the USA from 2618 aluminum alloy for superior tensile strength and heat resistance
• ArmorGlide® skirt coating provides seizure resistance, friction reduction, and quieter operation
• Fully machined crown with precision ring grooves for optimal ring seal
• Includes 9310 steel wrist pins, premium ring sets, and circlips

Key Specifications:

• Bore Diameter: 86.25mm (3.394 inches)
• Compression Height: 32.66mm (1.286 inches)
• Wrist Pin Diameter: 0.866 inches (22mm)
• Piston Volume: -16cc (dish)
• Piston Material: 2618 high-strength aluminum alloy
• Top Ring Thickness: 1.0mm
• Second Ring Thickness: 1.2mm
• Oil Ring Thickness: 2.8mm

Professional Series pistons are ideal for forced induction engines such as turbocharged or supercharged setups, with construction and heat resistance engineered to handle increased pressures and temperatures. Designed and built for heavy to severe duty race builds, these pistons deliver the strength and reliability needed for high-horsepower FA20 applications.

Engineered, forged, and machined on cutting-edge equipment at Wiseco's Mentor, Ohio manufacturing facility. Complete kit includes everything needed for installation: pistons, rings, pins, and circlips.