What is the compression ratio of this piston?

This Manley piston features a dish design that results in a compression ratio of 8.5:1. This is often preferred for turbocharged or supercharged applications where lower compression helps prevent detonation.

Does this piston come with everything needed for installation?

This part number includes one piston, rings, and a premium chrome moly wrist pin. You will need to purchase additional pistons to complete a full engine set, and it's recommended to consult the manufacturer's guide for any other necessary hardware or components.

Can this piston be shipped to California?

No, this piston is not CARB approved and cannot be shipped to California. Please check local regulations if you are outside of California.

Specifications

Brand: Manley Performance
Part #: 608020C-1
UPC: 807298073934

Manley 03-06 Evo 8/9 4G63T 87.0mm +2.0mm Over Bore 100mm Stroker 8.5:1 Dish Piston w/ Rings (One)

Name: Manley 03-06 Evo 8/9 4G63T 87.0mm +2.0mm Over Bore 100mm Stroker 8.5:1 Dish Piston w/ Rings (One)
Brand: Manley Performance
SKU: manley-performance-manley-03-06-evo-8-9-4g63t-87-0mm-2-0mm-over-bore-100mm-strok-t14-253314
Price: 189.71 USD
Availability: BackOrder

$189.71

On Backorder

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

Manley 03-06 Evo 8/9 4G63T 87.0mm +2.0mm Over Bore 100mm Stroker 8.5:1 Dish Piston w/ Rings (One). Forged from 2618 alloy for superior strength.

Key Features

Fits 1993-1999 Mitsubishi Eclipse, 1995-1999 Mitsubishi Galant, and 2003-2006 Mitsubishi Lancer, among other vehicles.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Features a dish shape to achieve an 8.5:1 compression ratio, suitable for boosted engines.
Includes a premium chrome moly wrist pin and rings for enhanced durability.
Boasts cam and barrel skirt profiles designed for smooth operation and reduced cylinder wall wear.
Ring lands and grooves are machined to exacting standards for improved ring seal and power.

⚠️ 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

Starting with a 2618 alloy forging, these Manley pistons are built for serious performance in your 4G63T engine. They're designed to be 87.0mm, which is a +2.0mm overbore from stock, and feature a dish shape to achieve an 8.5:1 compression ratio, making them a solid choice for boosted applications. This piston is sold individually and includes a premium chrome moly wrist pin and rings, ready for installation.

Manley's expertise shows in the details. They use proven cam and barrel skirt profiles that help the piston move smoothly against the cylinder walls, reducing wear while still generating power. The ring lands and grooves are machined to strict standards for a better seal, and their unique fixturing process ensures the ring grooves are perfectly square to the skirt. This attention to detail is why professional engine builders trust Manley for builds that need to perform and last.

This piston fits a range of vehicles, including the Mitsubishi Eclipse (1993-1999), Mitsubishi Galant (1995-1999), and Mitsubishi Lancer (2003-2006). Remember that this part is not CARB approved and cannot be shipped to California. You'll want to refer to the manufacturer's installation instructions for specific details on fitting these pistons into your engine build.