What is the compression ratio achieved with these pistons?

These pistons are designed to achieve a target compression ratio of 8.2:1. This is calculated based on the piston's -16cc dish volume and assumes specific cylinder head and gasket dimensions for your EJ20 engine.

Are these pistons suitable for a stock engine rebuild?

These are forged pistons designed for performance applications and demanding engine builds. While they can be used in a rebuild, they are typically chosen for builds aiming for increased power or durability beyond stock specifications.

Can these pistons be shipped to California?

No, these pistons are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle EJ20 Piston Set 92.50mm Bore 929928142

Name: Mahle MS Piston Set EJ20 92.50mm Bore 79.0mm Stroke 130.4mm Rod 23mm Pin -16cc 8.0 CR Set of 4
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-ej20-92-50mm-bore-79-0mm-stroke-130-4mm-rod-23mm-pin-1-t14-191502
Price: 749.22 USD
Availability: BackOrder

Mahle MS Piston Set EJ20 92.50mm Bore 79.0mm Stroke 130.4mm Rod 23mm Pin -16cc 8.0 CR Set of 4

$749.22

On Backorder

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

Mahle EJ20 forged piston set for Subaru 2.2L. 92.50mm bore, -16cc dish, 8.2 CR. Part# 929928142. Not CARB approved.

Key Features

Fits Subaru 2.2L engines.
Forged from 2618 aluminum alloy for strength.
92.50mm bore size.
-16cc dish volume for specific compression tuning.
Target compression ratio of 8.2:1.
Includes 4 pistons, each weighing 347g.

This piston set is designed for Subaru 2.2L engines. Always confirm compatibility with your specific engine code and build plan.

⚠️ 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

Forged from 2618 aluminum alloy, these Mahle MS pistons are built for demanding engine builds. They feature a 92.50mm bore and a -16cc dish volume, which helps achieve a target compression ratio of 8.2:1 when paired with the correct cylinder head and gasket combination. The 79.0mm stroke and 130.4mm rod length are specific dimensions to consider for your engine assembly.

Each piston weighs in at 347g, contributing to a well-balanced rotating assembly. The 23mm wrist pin diameter is a common size for performance applications, ensuring compatibility with many aftermarket connecting rods. Mahle is a well-known name in engine components, and this piston set reflects their commitment to well-built parts for serious engine work.

This set includes four pistons, ready for your EJ20 engine build. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to your engine builder's specifications and the manufacturer's installation instructions for proper assembly and tuning.