What is the compression ratio with these pistons?

These Mahle pistons feature a 4cc dish volume which results in a 13.5:1 compression ratio when used with the specified stroke and rod combination.

What material are these pistons made from?

The pistons are forged from 2618 aluminum, a strong and lightweight material commonly used in high-performance engine applications.

Are these pistons legal for use in California?

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

Mahle Forged Piston Set 4.165in Bore 13.5 CR 930208665

Name: Mahle MS Piston Set SBC 422ci 4.165in Bore 3.875in Stroke 6.0in Rod .927 Pin 4cc 13.5 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-sbc-422ci-4-165in-bore-3-875in-stroke-6-0in-rod-927-pi-t14-29530
Price: 923.24 USD
Availability: BackOrder

Mahle MS Piston Set SBC 422ci 4.165in Bore 3.875in Stroke 6.0in Rod .927 Pin 4cc 13.5 CR Set of 8

$923.24

On Backorder

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

Mahle forged piston set for 422ci SBC engines. 4.165in bore, 13.5 CR, 6.0in rod. Part# 930208665. Not CARB approved.

Key Features

This is a set of 8 Mahle MS pistons for 422 cubic inch Chevrolet Small Block engines.
Features a 4.165 inch bore size.
Designed for a 3.875 inch stroke and 6.0 inch connecting rod.
Utilizes a .927 inch pin diameter.
The pistons have a 4cc dish volume, resulting in a 13.5:1 compression ratio.
Constructed from 2618 aluminum for strength and durability.

⚠️ 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

Mahle is a well-known name in engine components, recognized for their high-performance parts that often come as original equipment. This Mahle MS Piston Set is built for serious engine builds, specifically targeting the Chevrolet Small Block 422 cubic inch displacement. If you're looking to get the most out of your engine, these pistons are a solid choice for a performance rebuild.

These pistons are forged from 2618 aluminum, a strong material choice for high-stress applications. They feature a 4.165-inch bore and are designed to work with a 3.875-inch stroke and a 6.0-inch connecting rod, with a .927-inch pin diameter. The 4cc dish volume contributes to a 13.5:1 compression ratio, which is ideal for naturally aspirated performance builds where maximum power is the goal. Each piston weighs in at 474 grams, helping to keep rotating assembly weight manageable for improved engine response.

This set includes eight pistons, ready for your next engine assembly. Please note that these pistons are not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and assembly procedures.