Wiseco Pro Tru Sport Compact Series Piston Kit (05-07 Mitsubishi Evolution, 93-99 Mitsubishi Eclipse) K626M855AP

Description

Wiseco Sport Compact Forged Piston & Ring Kit – 85.5mm Bore (K626M855AP)
Engineered for Power, Built to Perform

Upgrade your 4G63 engine with Wiseco’s K626M855AP forged piston and ring kit, designed for high-performance builds using boosted or nitrous setups. Whether you're racing or street driving, these pistons offer unmatched strength, tight tolerances, and heat resistance thanks to Wiseco’s advanced forging and precision finishing processes.

Key Features:

• Fits: Mitsubishi 4G63 (2nd Gen, 7-Bolt)

• Bore: 85.5mm (3.366 in)

• Compression Distance: 1.378 in

• Piston Head Volume: +14cc Dish with Four Valve Reliefs

• Material: Forged Aluminum – Built for Boost & Nitrous

• Pin Style: Floating or Press-fit

• Wrist Pins: 0.866 in dia. x 0.225 in wall Tool Steel

• Piston Rings Included:

  • Top Ring: 1.0mm Gas Nitrided Steel

  • Second Ring: 1.2mm Phosphate Coated Cast Iron

  • Oil Ring: 2.8mm Stainless Steel

• File Fit Rings – Yes

• Gapless: No

• Quantity: Complete Set (Pistons, Rings, Wrist Pins)

Why Wiseco?
Trusted by performance engine builders worldwide, Wiseco pistons are crafted with cutting-edge forging technology to ensure max power, durability, and consistent fit. These pistons are ideal for high-RPM and high-horsepower turbocharged or nitrous-fed applications.