Wiseco K677M865AP Forged Piston Kit for Toyota 2JZ-GTE 86.5mm Bore 9.6:1 Compression

The Wiseco K677M865AP is a professional-grade forged piston kit designed specifically for Toyota 2JZ-GTE engines. This complete kit includes six forged pistons, premium piston rings, heavy-duty wrist pins, and wire retainer clips—everything needed for a high-performance engine build.

Key Specifications:

• Bore Size: 86.5mm (3.405 inches) - 0.5mm oversized
• Compression Ratio: 9.6:1 with asymmetric dome design
• Compression Height: 34.00mm (1.338 inches)
• Pin Diameter: 22mm (0.866 inches)
• Stroke: 86mm (3.386 inches)
• Rod Length: 142mm (5.590 inches)
• Dish Volume: -5.3cc

Professional Series Features:

• Forged from 2618 aluminum for superior tensile strength and durability
• ArmorGlide skirt coating reduces friction, prevents seizure, and enables quieter operation
• Armor Plating on crown and pin bore increases hardness, prevents micro-welding of rings, and combats detonation corrosion
• Upgraded 0.200-inch wall tool steel wrist pins for maximum strength in high-output applications
• Gas ported design for improved ring seal and performance
• Asymmetric skirt design optimizes piston stability and reduces cylinder wall friction
• Crown and ring lands engineered specifically for forced induction applications including turbochargers and nitrous oxide
• Precision CNC machined in-house in the USA for industry-leading tolerances

Wiseco's Professional Series pistons are built for serious racers and high-horsepower builds, with reinforced pin bores, ring lands, and crowns designed to handle extreme power levels. The complete kit with premium rings ensures reliable performance from 150 horsepower street builds to 1000+ horsepower race applications.