Wiseco K700M865 Forged Piston Kit Bore Mitsubishi - 86.5mm 4B11

The Wiseco K700M865 is a high-performance forged piston kit engineered specifically for Mitsubishi 4B11 turbocharged engines, featuring an 86.50mm bore diameter and 33.25mm compression height. This professional-grade piston set delivers the strength and precision required for high-boost applications and performance builds.

Key Features:

• Forged from 2618 aluminum alloy for superior strength and heat resistance
• 86.50mm bore diameter with -8.00cc dish design
• 33.25mm compression height optimized for 4B11 applications
• H13 tool steel wrist pins (S809) with 23mm diameter included
• 1.0mm top compression ring thickness for improved sealing
• Complete kit includes forged pistons, rings, wrist pins, and circlips
• CNC machined in-house at Wiseco's USA facility for precision tolerances
• Diamond-turned finish ensures perfect cylinder wall fit

Wiseco Sport Compact pistons are designed with optimized skirt profiles to minimize friction and piston rock, while valve pocket designs allow maximum flow for oversized valves and high-lift camshafts. Each piston is engineered, forged, and machined in the United States using cutting-edge manufacturing technology. Ideal for turbocharged applications, engine rebuilds, and performance upgrades on Mitsubishi Lancer Evolution X and other 4B11-powered vehicles.