What is the advantage of using forged pistons like these?

Forged pistons, like these made from 2618 alloy, are significantly stronger and more durable than cast pistons. This makes them better suited for high-performance applications, especially those involving turbochargers or superchargers, as they can withstand higher cylinder pressures and temperatures.

What does '+1mm Over Bore' mean for installation?

This means the pistons are designed to fit cylinders that have been bored out by 1 millimeter. You will need to have your engine block professionally machined to a 86mm bore diameter to ensure a proper fit and seal with these pistons.

Are these pistons compatible with all engine builds?

These pistons have a 9.0:1 dish compression ratio, which is generally well-suited for turbocharged or supercharged (boosted) engines. For naturally aspirated builds, this compression ratio might be lower than ideal for maximum power. They are not CARB approved and cannot be shipped to California.

Specifications

Brand: Manley Performance
Part #: 606110C-4
UPC: 807298024318

Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 86mm +1mm Over Bore 9.0:1 Dish Pistons w/ Rings

Name: Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 86mm +1mm Over Bore 9.0:1 Dish Pistons w/ Rings
Brand: Manley Performance
SKU: manley-performance-manley-03-06-evo-8-9-7-bolt-4g63t-86mm-1mm-over-bore-9-0-1-di-t14-241815
Price: 758.81 USD
Availability: BackOrder

$758.81

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1993-1999 Mitsubishi Eclipse. Manley Performance forged pistons for enhanced engine performance and durability.

Key Features

Fits 1993-1999 Mitsubishi Eclipse, 2003-2006 Mitsubishi Lancer, 1993-1998 Eagle Talon, and 1993-1994 Plymouth Laser.
Constructed from 2618 alloy forgings for superior strength and performance.
Features a 9.0:1 dish compression ratio, ideal for boosted engines.
Includes premium chrome moly wrist pins for added durability.
Exacting ring lands and grooves ensure enhanced ring seal and power output.
Cam and barrel skirt profiles help generate power while protecting cylinder walls.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

Manley Performance is well-known for building strong engine components that professional builders trust. If you're working on a 1993-1999 Mitsubishi Eclipse, 2003-2006 Mitsubishi Lancer, or the equivalent Eagle Talon and Plymouth Laser, these 86mm +1mm over bore pistons are a solid choice for a performance rebuild. They feature a 9.0:1 dish compression ratio, making them suitable for boosted applications where you need to control detonation.

These pistons are forged from 2618 alloy, a material chosen for its superior strength and performance under demanding conditions. Manley uses proven cam and barrel skirt profiles that help generate power efficiently while also being considerate of your cylinder walls during operation. The ring lands and grooves are machined to exacting standards, which is crucial for achieving a good seal and maximizing the power your engine makes. To ensure ultimate squareness between the ring grooves and the piston skirt, Manley uses unique fixturing that allows both operations to be done in a single setup.

Included with these pistons are premium chrome moly wrist pins, known for their durability. For those pushing the limits, Manley also offers upgrades to even stronger alloys. This set is designed as a +1mm overbore, meaning you'll need to bore your cylinders to 86mm to achieve a proper fit. Remember, these pistons are not CARB approved and cannot be shipped to California.