Wiseco K676M85AP Forged Piston Kit Mitsubishi 4G63 7-Bolt 85mm Bore 1.9cc Dome 10.5:1

The Wiseco K676M85AP is a forged performance piston kit engineered specifically for the Mitsubishi 4G63 7-bolt engine with a standard 88mm stroke crankshaft and 156mm long connecting rod. Featuring a 1.9cc dome profile and a 10.5:1 compression ratio, this kit is built for stock-displacement performance builds demanding superior strength and reliability over OEM cast pistons.

Each piston is forged and machined in the USA from 2618 high-strength aluminum alloy, delivering exceptional tensile strength and fatigue resistance under high-boost turbocharged conditions. The 85mm bore diameter makes this kit ideal for engines built to factory displacement specifications.

Key Features:

• 85mm Bore Diameter — stock displacement, compatible with standard 88mm stroke and 156mm connecting rod
• 1.9cc Dome Crown — yields a 10.5:1 compression ratio for stock-style performance builds
• 7-Bolt 4G63 Application — designed for the stronger 7-bolt block variant
• 2618 Forged Aluminum Alloy — superior tensile strength and heat resistance vs. cast pistons
• ArmorGlide® Skirt Coating — reduces friction, resists seizure, and promotes quieter operation
• Precision Machined Ring Grooves — ensures consistent ring seal and long service life
• Complete Piston Kit — includes pistons, premium rings, wrist pins, and circlips

The Wiseco K676M85AP is the go-to choice for enthusiasts and builders seeking a reliable forged piston upgrade for the legendary Mitsubishi 4G63 7-bolt platform without departing from stock bore dimensions.