SKU: 614005C-1 | UPC: 807298027036
Manley 2008+ Mitsubishi Evo X (4B11T) 86.5mm +.5mm Oversize Bore 9.0:1 Dish Single Piston/Ring
This Manley single piston and ring set fits 2008-2015 Mitsubishi Lancer Evolution X models with the 4B11T engine. Designed with a 86.5mm oversize bore and 9.0:1 compression ratio via -10cc dish top, it supports boosted builds with stronger materials for durability under high stress. Expect better ring seal and cylinder wall protection for consistent power delivery.
Key Features
- 2618 Alloy Forgings: Domestic 2618 alloy provides high strength to handle extreme boost and RPM without failure.
- Chrome Moly Wrist Pins: Standard premium pins ensure reliable connection. upgrades to 9310 or Turbo Tuff/DLC available for added toughness.
- Exact Ring Lands and Grooves: Precision machining improves ring seal to reduce blow-by and increase horsepower output.
- Cam and Barrel Profiles: Skirt design reduces friction on cylinder walls while allowing high power levels.
- Unique Fixturing: Single-operation skirt turning and ring groove machining guarantees perfect squareness for longevity.
Product Notes
- Oversize bore requires cylinder honing to 86.5mm. includes complete ring set.
- Compression height 30mm. stroke 86mm. rod length 147.9mm.
- Packaged for protection during shipping. weighs 0.65 lbs net.
Installation Notes
- Professional installation recommended.
- Hone cylinders to 86.5mm. check piston-to-wall clearance at 0.0035-0.0045 inches.
- Compatible with stock or aftermarket rods. use assembly lube on pins and rings.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 | Mitsubishi | Lancer Evolution | GSR |
| 2010-2014 | Mitsubishi | Lancer Evolution | GSR |
| 2008 | Mitsubishi | Lancer Evolution | MR |
| 2010-2014 | Mitsubishi | Lancer Evolution | MR |
| 2010-2011 | Mitsubishi | Lancer Evolution | MR Touring |
Why Choose Manley?
- Decades of experience engineering pistons for turbocharged imports.
- 2618 forgings tested in racing applications for proven reliability.
- CNC machining ensures exact tolerances for every piston.
Frequently Asked Questions
- Q: Does this fit all 2008-2015 Evo X 4B11T engines?
A: Yes, designed for GSR, MR, and MR Touring trims with standard bore machining to 86.5mm oversize. - Q: What material is the piston made from?
A: Forged 2618 aluminum alloy with Chrome Moly wrist pin and moly rings for heat resistance and strength. - Q: What is the warranty and install tips?
A: Manley offers a one-year unlimited mileage warranty. always measure clearances and use proper break-in oil.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Protective box 6 x 4 x 4 inches
- Weight: 0.65 lbs
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