Wiseco K662M86AP Forged Piston Kit Mitsubishi Turbo - 1400HD E85 4G63 86mm

The Wiseco K662M86AP is a 1400HD E85 Series forged piston kit engineered for the turbocharged Mitsubishi 4G63 engine. Built on Wiseco's heavy-duty strutted 1400HD forging platform, this kit is purpose-built for high-output forced induction builds running E85, methanol, or other aggressive fuel strategies.

Key Features:

• 1400HD Strutted Forging: Heavy-duty forging architecture developed specifically for turbocharged 4G63 applications capable of supporting 350+ horsepower per cylinder
• 2618 Aerospace Alloy: The strongest aluminum alloy available, offering superior tensile strength at elevated temperatures with low silicon content for minimal porosity
• ArmorGlide® Skirt Coating: Proprietary anti-friction skirt coating reduces piston rock, minimizes scuffing during break-in, lowers cylinder wall friction, and contributes to increased horsepower output
• 86.00 mm Bore (0.040" Oversize): Precision-machined to 86.00mm for a direct oversize fitment
• E85 Compatible: Crown geometry and compression ratio optimized for ethanol and flex-fuel applications
• Specially Designed Valve Pockets: Allows maximum flow around valves and accommodates oversized valves and high-lift camshafts
• Optimized Crown Shape: Promotes maximum intake charge efficiency through scavenging mixture cross-flow during intake and exhaust valve overlap
• Heavy Radii Construction: Large smooth radii from skirts and pin boss into the crown prevent flex and cracking under extreme loads
• Included .225" Wall Tool Steel Wrist Pins: Upgraded thick-wall tool steel pins (Pin P/N: S722, 22mm diameter) reinforce the weak points under extreme power levels
• XX Ring Set Included (P/N: 8600XX): 1mm x 1.2mm x 2.8mm ring set featuring a stainless steel gas-nitrided top ring, cast iron Napier hook second ring, and flex-vent oil ring with gas-nitrided scraper rails

Specifications:

• Bore: 86.00 mm / 3.386 in (0.040" oversize)
• Compression Height: 35.00 mm / 1.378 in
• Pin Diameter: 22 mm / 0.866 in
• Volume: -1cc dome
• Alloy: 2618 Aerospace Aluminum
• Skirt Coating: ArmorGlide®
• Replacement Pin P/N: S722
• Replacement Ring P/N: 8600XX

Engineered and forged in the USA, the K662M86AP is the go-to choice for serious 4G63 turbocharged builds demanding maximum durability and power potential.