What is the compression ratio of these pistons?

These Manley pistons feature a 9.0:1 compression ratio. This is achieved through the specific dish design on the piston crown, which affects how much volume is in the combustion chamber at Top Dead Center.

What material are the included wrist pins made from?

This set comes standard with premium chrome moly wrist pins. Manley also offers upgrades to 9310 and Turbo Tuff/DLC alloys on select part numbers for even greater durability.

Are these pistons suitable for all 4G63T engine variants?

This specific part number (606100C-4) is designed for the 7-bolt 4G63T engine found in the specified Mitsubishi Eclipse, Lancer, Eagle Talon, and Plymouth Laser models from the listed years. Always confirm your engine's bolt count before ordering.

Specifications

Brand: Manley Performance
Part #: 606100C-4
UPC: 807298027531

Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 85mm STD Bore 9.0:1 Dish Pistons w/ Rings

Name: Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 85mm STD Bore 9.0:1 Dish Pistons w/ Rings
Brand: Manley Performance
SKU: manley-performance-manley-03-06-evo-8-9-7-bolt-4g63t-85mm-std-bore-9-0-1-dish-pi-t14-15206
Price: 758.81 USD
Availability: InStock

$758.81

Only 1 left in stock

Fits 1993-1999 Mitsubishi Eclipse. Manley 85mm forged pistons with a 9.0:1 compression dish, built for high-performance 4G63T engines.

Key Features

Fits 1993-1999 Mitsubishi Eclipse, 2003-2006 Mitsubishi Lancer, 1993-1998 Eagle Talon, and 1993-1994 Plymouth Laser.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Features an 85mm standard bore and a 9.0:1 compression dish.
Includes proven cam and barrel skirt profiles to reduce cylinder wall wear.
Exacting standards for ring lands and grooves enhance ring seal for improved power.
Comes with premium chrome moly wrist pins for added durability.

⚠️ 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 the 2618 alloy forgings, these Manley pistons are built for serious performance in your 1993-1999 Mitsubishi Eclipse, 2003-2006 Mitsubishi Lancer, or their Eagle Talon and Plymouth Laser siblings. The 85mm standard bore and 9.0:1 compression dish are specifically chosen to work with the 4G63T engine, aiming for a balance of power and reliability when you're pushing the limits.

Manley uses domestic 2618 alloy for its superior strength, which is crucial when you're dealing with increased boost or higher RPMs. They've also incorporated proven cam and barrel skirt profiles. This design helps the piston move smoothly within the cylinder walls, reducing wear and noise while still allowing for substantial power gains. The ring lands and grooves are machined to very strict standards, which is key for getting a good seal with your piston rings, leading to better compression and more power out of every combustion cycle. These pistons also come with premium chrome moly wrist pins for added durability.

When you're rebuilding a performance engine, attention to detail matters. Manley's unique fixturing process allows them to machine the skirt and cut the ring grooves in one operation. This ensures the piston rings are perfectly square to the skirt, which is vital for optimal sealing and preventing blow-by. This set includes the pistons, rings, and wrist pins, making it a solid foundation for your engine build.