Engine Fitment

• Mitsubishi 4B11T 2.0L Turbocharged I4 (Evo X, 2008–2015)

Vehicle Fitment

• 2008–2015 Mitsubishi Lancer Evolution X (GSR and MR, All Trims)

Fitment Notes

• Standard bore (86.00mm) -- no cylinder machining required at stock bore
• Recommended piston clearance: .0035" measured 1.100" from bottom of oil ring
• Will accommodate +1mm valve sizes
• 9310 alloy upgraded wrist pins available separately
• Set of 4 pistons -- covers all cylinders
• No warranty -- sold as-is per Manley's standard policy for performance parts

Features

• Manley Platinum Series -- Sport Compact forged piston line
• 2618 high-strength aluminum alloy -- high-temperature fatigue resistance
• Moly coated skirts -- friction reduction and seizure resistance
• -5cc dish crown -- 9.0:1 compression ratio, suited for boosted applications
• Offset wrist pin -- quiet cold start, reduced piston slap
• Pressure balance groove -- reduces ring flutter at high RPM
• Will accommodate +1mm valve sizes
• "One fixturing" ring groove machining -- perfect squareness to cylinder wall
• Total Seal premium steel top rings with Napier seconds -- included
• Premium .150" wall x 2.250" chrome moly wrist pins -- included
• Round wire locks -- included
• Piston weight: 337g

Specifications

• Series: Platinum
• Bore diameter: 86.00mm (STD / OEM)
• Compression ratio: 9.0:1
• Crown volume: -5cc (dish)
• Compression height: not specified
• Stroke: 86mm
• Rod length: 143.66mm
• Wrist pin diameter: 2.250" x .150" wall
• Wrist pin material: Chrome moly
• Skirt coating: Moly
• Material: 2618 aluminum alloy
• Piston weight: 337g each
• Ring set: Total Seal steel top / Napier second (included)
• Companion ring set only: Manley 46860-4
• Quantity: Set of 4

Included Components

• 4x Manley Platinum forged pistons (86.00mm)
• 4x Total Seal ring sets (steel top / Napier second)
• 4x Chrome moly wrist pins (2.250" x .150" wall)
• 4x Round wire locks

Product Description

The Manley 614000C-4 is a Platinum Series set of four forged pistons for the Mitsubishi 4B11T 2.0L in the 2008–2015 Lancer Evolution X, at standard 86.00mm bore and 9.0:1 compression ratio. The -5cc dish crown is designed for forced induction builds where lower compression is needed to control detonation under boost. The 2618 aluminum alloy provides the tensile strength and thermal fatigue resistance required for sustained high-boost turbocharged applications where the 4032 alloy found in economy piston sets would fail prematurely.

Moly coated skirts reduce friction and seizure risk during break-in and long-term operation. The offset wrist pin design reduces piston slap on cold starts. Manley's "one fixturing" ring groove machining process holds perfect groove-to-skirt squareness, maximizing ring seal and power output. Total Seal steel top rings with Napier second rings, chrome moly wrist pins, and round wire locks are all included -- no additional ring or pin purchase required. Companion ring set only: Manley 46860-4. Recommended piston clearance .0035" measured 1.100" from the bottom of the oil ring.