Wiseco K570M915 Forged 91.5 mm -14 cc Pistons for Mitsubishi 3.0L 6G72

Vehicle Fitment

• Mitsubishi 3.0 L 6G72 (3000GT / Stealth, DOHC 24-valve)

Features

• Forged from 2618 aerospace-grade aluminum for high strength and fatigue resistance
• ArmorGlide® skirt coating to reduce friction and improve durability
• Dish design (-14 cc) for low compression - ideal for turbo or performance setups
• Strutted forging structure for enhanced rigidity under high loads
• Fully machined crown with precision ring grooves and anti-detonation features
• Forced-pin oiling to ensure reliable lubrication at high RPM
• Comes with a performance piston ring set matched to the part (9150XX)
• 22 mm wrist pin for strong piston-to-rod connection

Specifications

• Bore: 91.50 mm
• Compression Height: 31.75 mm
• Piston Volume / Dish: -14.00 cc
• Wrist Pin Diameter: 22 mm (0.866 in)
• Piston Material: Forged 2618 aluminum
• Nominal Piston Weight: ~343 g each
• Compression Ratio: ~7.8:1 (as supplied for this kit)
• Ring Set: 9150XX included

Included Components

• 6x forged dish pistons (91.5 mm, -14 cc)
• 6x 22 mm wrist pins
• 6x circlips / locks for wrist pins
• 6x piston ring sets (9150XX)

Product Description

The Wiseco K570M915 piston kit is a high-performance forged set engineered specifically for the Mitsubishi 6G72 3.0L DOHC 24-valve V6 engine (used in 3000GT and Stealth models). With a 91.5 mm bore and - 14 cc dish design, these pistons are optimized for low static compression - making them especially useful for turbocharged or highly tuned applications.

Built from stronger 2618 aluminum, they deliver excellent durability under high stress. The ArmorGlide® coated skirts minimize friction and reduce the risk of seizure, while the strutted forging design adds important strength to resist side-loads. The kit includes the recommended 9150XX ring set plus 22 mm wrist pins, giving you everything you need for a reliable engine rebuild.

Proper installation requires careful measurement of bore clearance, ring gaps, and deck height. Given the dished skirt, selecting a suitable head gasket and verifying compression is essential. Ideal for performance enthusiasts rebuilding or upgrading a 6G72 engine with durability and high power in mind.