What is the purpose of the -12cc dish volume?

The -12cc dish volume is a specific design feature that helps reduce the compression ratio of your engine. This is essential when building a high-performance engine, especially if you plan to use forced induction like a turbocharger, as it allows for more boost without detonation.

What makes the 2618 alloy forgings suitable for performance engines?

The 2618 alloy is chosen for its excellent strength and ductility at high temperatures. This means the pistons can withstand the extreme pressures and heat generated in a performance engine without deforming or failing, contributing to overall durability.

Are there any restrictions on where these pistons can be shipped?

Yes, these pistons are not CARB approved and therefore cannot be shipped to California. They are intended for off-road or competition use where emissions regulations may differ.

Specifications

Brand: Manley Performance
Part #: 617000CE-4
UPC: 807298091112

Manley Mitsubishi 4G63/4G63T EVO VIII/IX 85mm STD -12cc Extreme Duty Dish Pistons w/ Rings

Name: Manley Mitsubishi 4G63/4G63T EVO VIII/IX 85mm STD -12cc Extreme Duty Dish Pistons w/ Rings
Brand: Manley Performance
SKU: manley-performance-manley-mitsubishi-4g63-4g63t-evo-viii-ix-85mm-std-12cc-extrem-t14-102257
Price: 893.77 USD
Availability: BackOrder

$893.77

On Backorder

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

Manley Mitsubishi 4G63/4G63T EVO VIII/IX 85mm STD -12cc Extreme Duty Dish Pistons w/ Rings. Built for high-performance engines.

Key Features

Fits Mitsubishi 4G63 and 4G63T engines in EVO VIII and IX models.
Features 85mm standard bore size and a -12cc dish volume for custom compression ratios.
Constructed from domestic 2618 alloy forgings for superior strength and performance.
Includes proven cam and barrel skirt profiles to reduce cylinder wall wear and enhance power.
Ring lands and grooves are machined to exacting standards for improved ring seal and power.
Manley's unique fixturing ensures ultimate ring groove to skirt squareness.

These pistons are designed for Mitsubishi 4G63 and 4G63T engines found in EVO VIII and IX models. Please verify compatibility with your specific engine build.

⚠️ 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

If you're building a high-performance Mitsubishi 4G63 or 4G63T engine for an EVO VIII or IX, these Manley Extreme Duty dish pistons are a solid choice. They're designed to handle the demands of serious engine builds, offering a specific 85mm standard bore size and a -12cc dish volume, which is important for setting your compression ratio correctly. Manley has a strong reputation among professional engine builders for a reason, and these pistons are a key part of that.

These pistons start with domestic 2618 alloy forgings, known for their strength and ability to perform under pressure. They feature proven cam and barrel skirt profiles, which help reduce friction and wear on your cylinder walls while still allowing the piston to generate power. The ring lands and grooves are machined to very strict standards, which is crucial for getting a good seal from your piston rings. A good ring seal means more power and better engine efficiency. Manley also uses unique fixturing that allows them to machine the skirt and ring grooves in one setup, ensuring they are perfectly square to each other for optimal performance.

Included with these pistons are premium chrome moly wrist pins, which are strong and durable. For those pushing the limits even further, Manley offers upgrades to even tougher wrist pin alloys. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. They are designed for competition and performance builds where durability and power are the top priorities.