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Wiseco

Wiseco Mitsu Evo 4-9 4G63 Asymmetric Skirt Bore 86.50mm - Size +.060 - CR 9.5 Piston Set

$806.99

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Wiseco forged piston set for Mitsubishi Evo 4-9. Bore 86.50mm, CR 9.5:1. Built for severe duty race builds.

Key Features

  • Fits Mitsubishi Evo 4-9 with 4G63 engine.
  • Forged and machined in the USA from 2618 aluminum for improved tensile strength.
  • Features precision ring grooves, anti-detonation grooves, and additional ring seal improvements.
  • ArmorGlide skirt coating reduces friction, resists seizure, and quiets operation.
  • Designed and built to withstand heavy to severe duty performance applications.
  • Fully machined crown and forced pin oiling enhance performance and durability.
This piston set is designed for Mitsubishi Evo 4-9 models with the 4G63 engine. It is not CARB approved and cannot be shipped to California.

⚠️ 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 rebuilding the engine in your Mitsubishi Evo 4-9, this set of Wiseco forged pistons is built for serious performance. These pistons are specifically made for the 4G63 engine, with a bore size of 86.50mm and a compression ratio of 9.5:1. They are designed to handle the demands of heavy to severe duty race applications, meaning they're well-built to withstand high stress and heat.

Wiseco crafts these pistons from 2618 aluminum in the USA, which gives them improved tensile strength. You'll find precision ring grooves, anti-detonation grooves, and other features that help improve ring seal. They also come with an ArmorGlide skirt coating that helps reduce friction, resist seizure, and operate more quietly. The fully machined crown and forced pin oiling are also notable features that contribute to their durability and performance in demanding builds.

This set includes four pistons, each with a 34.87mm compression height and a 0.866-inch pin diameter. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. For a robust engine build that can handle intense use, this Wiseco piston set is a solid option.

Specifications

Brand
Wiseco
Manufacturer Part #
K666M865AP
UPC
00193564089953

Frequently Asked Questions

Wiseco Mitsu Evo 4-9 4G63 Asymmetric Skirt Bore 86.50mm - Size +.060 - CR 9.5 Piston Set

$806.99