Wiseco K548M86AP Forged Piston Kit 86mm 4G63 7-Bolt 8.3:1 CR

The Wiseco K548M86AP forged piston kit is engineered for Mitsubishi 4G63 7-bolt engines found in 1993-2001 Eclipse and Eagle Talon models. This 4-cylinder piston set features an 86.00mm (3.386 inch) bore size with +1.0mm oversize and an 8.3:1 compression ratio, making it ideal for turbocharged applications including turbochargers, superchargers, and nitrous oxide systems.

Key Features:

• Precision-forged aluminum construction for maximum strength and durability
• ArmorGlide coating on piston skirt reduces friction and minimizes scuffing during break-in
• Optional ArmorPlating coating on crown, ring grooves, and pin bore for enhanced durability
• 22mm wrist pin diameter for high-strength applications
• Advanced CNC machining ensures precise tolerances and optimal performance
• Complete kit includes pistons, rings, pins, and hardware for installation

Wiseco forged pistons are manufactured in-house using state-of-the-art forging processes and extensive heat treatment procedures. The crown thickness and ring lands are specifically designed to handle the demands of forced induction, while optimized skirt profiles minimize piston rock and provide long service life. Each piston undergoes multiple finishing processes to deliver race-proven reliability at an affordable price point.

Specifications:

• Bore: 86.00mm (3.386 inches) - +1.0mm oversize
• Compression Ratio: 8.3:1
• Pin Diameter: 22mm
• Application: Mitsubishi 4G63 7-bolt (1993-2001)