What material are these Wiseco pistons made from?

These Wiseco pistons are forged and machined in the USA from 2618 aluminum. This material is selected for its improved tensile strength, making it suitable for high-performance and severe duty engine builds.

What is the purpose of the ArmorGlide skirt coating?

The ArmorGlide skirt coating on these pistons is designed to reduce friction between the piston skirt and cylinder wall. It also helps resist seizure and contributes to quieter operation of the engine.

Are these pistons compatible with all Mitsubishi 4G63 engines?

This specific piston set (K559M855) is designed for the 1990-1992 model years of the Eagle Talon, Mitsubishi Eclipse, Mitsubishi Galant, and Plymouth Laser. Always verify fitment for your specific vehicle and engine configuration.

Wiseco Mits Turbo DISH -17cc 1.378 X 85.5 Piston Shelf Stock Kit

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Specifications

Brand: Wiseco
Part #: K559M855
UPC: 00193564075383

Wiseco Mits Turbo DISH -17cc 1.378 X 85.5 Piston Shelf Stock Kit

Name: Wiseco Mits Turbo DISH -17cc 1.378 X 85.5 Piston Shelf Stock Kit
Brand: Wiseco
Price: 683.99 USD
Availability: InStock

$683.99

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Fits 1990-1992 Eagle Talon. Wiseco forged piston set for high-performance builds, featuring a -17cc dish and 85.5mm bore.

Key Features

Fits 1990-1992 Eagle Talon, 1990-1992 Mitsubishi Eclipse, 1991-1992 Mitsubishi Galant, and 1990-1992 Plymouth Laser.
Forged and machined in the USA from 2618 aluminum for improved tensile strength.
Features a -17cc dish volume and a 85.50 mm bore.
Includes precision ring grooves, anti-detonation grooves, and additional ring seal features.
ArmorGlide skirt coating reduces friction, resists seizure, and quiets operation.
Designed for heavy to severe duty performance applications.

⚠️ 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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Will this fit your vehicle?

Product Details

Starting with a -17cc dish volume and a precise 85.50 mm bore, these Wiseco pistons are built for demanding Mitsubishi 4G63 engine applications. They are forged and machined in the USA from 2618 aluminum, a material chosen for its improved tensile strength, making them well-suited for heavy to severe duty performance builds where reliability under stress is paramount. The fully machined crown also features anti-detonation grooves and additional ring seal improvements, working together to enhance combustion efficiency and durability.

Wiseco has also applied their ArmorGlide skirt coating to these pistons. This specialized coating helps reduce friction, resist seizure, and operate more quietly, contributing to overall engine health and longevity. The forced pin oiling design ensures the piston pin receives adequate lubrication, a critical factor in high-performance engines. These pistons are designed to handle the rigors of racing and serious engine building, offering a solid foundation for your project.

This set includes four pistons, along with premium rings, ready for installation. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.