Wiseco K674M865 Mitsubishi 4G63 7-Bolt 2.0L Gen 2 Forged Piston Kit 86.5mm Bore -12cc Dish 8.5:1

The Wiseco K674M865 is a forged piston kit engineered specifically for the Mitsubishi 4G63 2.0L Gen 2 turbocharged engine with 7-bolt configuration. Designed for use with a 156mm long connecting rod, this kit features an 86.5mm bore (+0.060" oversize), a -12cc dish crown, and an 8.5:1 compression ratio — making it an ideal choice for high-boost forced induction builds where reliable detonation resistance is critical.

Key Features:

• 86.5mm Bore — +0.060" oversize for use with a freshly bored or sleeved block
• -12cc Dish Crown — Low compression design optimized for turbocharged and high-boost applications
• 8.5:1 Compression Ratio — Compatible with aggressive boost and E85 fuel strategies
• 156mm Long Rod Application — Engineered with the correct compression height for stroker and long-rod 4G63 builds
• 7-Bolt 4G63 Specific — Designed for the Gen 2 (1992+) 7-bolt block configuration
• 2618 Forged Aluminum Alloy — High-strength aerospace-grade material offering superior tensile strength under extreme heat and pressure
• ArmorGlide® Skirt Coating — Factory-applied skirt coating reduces friction, prevents seizure, and promotes quieter operation
• Precision Ring Grooves — Anti-detonation groove and ring seal features for improved combustion control
• Forced Pin Oiling — Ensures continuous wrist pin lubrication under high-RPM and high-load conditions
• Engineered and Manufactured in the USA — Forged and machined at Wiseco's Mentor, Ohio facility

The Wiseco K674M865 piston kit is purpose-built for serious 4G63 engine builds — from daily-driven turbo street cars to full race applications. Packaged with premium rings and wrist pins, this kit delivers the durability and precision required to support significant horsepower levels in the legendary Mitsubishi 4G63 platform.