What is the bore size and compression height for these pistons?

These pistons have a bore size of 97.50 mm and a compression height of 33.32 mm. The pin diameter is 0.9055 inches.

What is the purpose of the ArmorGlide skirt coating?

The ArmorGlide skirt coating is applied to help reduce friction between the piston and cylinder wall. It also contributes to seizure resistance and quieter operation of the engine.

Are these pistons legal for use in California?

No, these pistons are not CARB approved and cannot be shipped to California. Please check local emissions regulations before purchasing.

1991-1994 Subaru Legacy Piston Set

Name: Wiseco Subaru EJ22 Inv Dome -20cc 97.5mm Piston Shelf Stock Kit
Brand: Wiseco
SKU: wiseco-wiseco-subaru-ej22-inv-dome-20cc-97-5mm-piston-shelf-stock-kit-t14-243922
Price: 717.99 USD
Availability: InStock

Wiseco Subaru EJ22 Inv Dome -20cc 97.5mm Piston Shelf Stock Kit

$717.99

Only 4 left in stock

Fits 1991-1994 Subaru Legacy. Wiseco forged piston set built for severe duty race builds.

Key Features

Fits 1991-1994 Subaru Legacy.
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.
Includes ArmorGlide skirt coating for seizure resistance, friction reduction, and quieter operation.
Designed and built to withstand heavy to severe duty performance applications.
Fully machined crown features.

⚠️ 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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Product Details

Wiseco is well-known for making strong, reliable forged pistons for high-performance applications. If you're rebuilding the engine in your 1991-1994 Subaru Legacy for serious racing or heavy-duty use, this set of four forged pistons is built to handle the demands. They are designed to replace your stock pistons with a component that offers improved durability and performance under extreme conditions.

These pistons are forged and machined in the USA from 2618 aluminum, a material chosen for its high tensile strength, which is crucial for withstanding the pressures of performance engines. They feature precision ring grooves, anti-detonation grooves, and other features designed to improve ring seal. The crown of each piston is fully machined, and they come with forced pin oiling to ensure proper lubrication. Additionally, they have an ArmorGlide skirt coating that helps reduce friction, resist seizure, and operate more quietly.

This kit is intended for sport compact applications and is designed for heavy to severe duty performance builds. 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.