What is the compression ratio achieved with these pistons?

These pistons have a -7.8cc dish volume. When used with the appropriate cylinder heads and gasket combination for a 445 cubic inch Ford Godzilla engine, this configuration results in a 12.0 compression ratio.

What material are these pistons made from?

The pistons are forged from 2618 aluminum. This material is known for its strength and ability to handle high performance demands, making it a popular choice for racing and performance engine builds.

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 Godzilla Forged Piston Set 4.221in Bore - Mahle 930266

Name: Mahle MS Godzilla Piston 445ci 4.221in Bore 3.976 Stroke 6.319 Rod 0.990 Pin -7.8cc 12.0CR - St of 8
Brand: Mahle
SKU: mahle-mahle-ms-godzilla-piston-445ci-4-221in-bore-3-976-stroke-6-319-rod-0-990-p-t14-848293
Price: 1012.72 USD
Availability: BackOrder

Mahle MS Godzilla Piston 445ci 4.221in Bore 3.976 Stroke 6.319 Rod 0.990 Pin -7.8cc 12.0CR - St of 8

$1012.72

On Backorder

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

Mahle MS Godzilla forged piston set for 445ci Ford Godzilla engines. 4.221in bore, 12.0 CR.

Key Features

This set includes eight Mahle MS Godzilla forged pistons.
Designed for 445 cubic inch Ford Godzilla engines.
Each piston has a 4.221-inch bore and a 3.976-inch stroke.
Features a 6.319-inch rod length and a 0.990-inch pin.
The -7.8cc dish volume contributes to a 12.0 compression ratio.
Constructed from 2618 aluminum for strength and light weight.

⚠️ 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

This is a set of eight Mahle MS Godzilla forged pistons, designed for 445 cubic inch Ford Godzilla engines. Each piston features a 4.221-inch bore and a 3.976-inch stroke, with a 6.319-inch rod length and a 0.990-inch pin. The pistons have a dish volume of -7.8cc, which helps achieve a 12.0 compression ratio when paired with the correct components.

These pistons are constructed from 2618 aluminum, a strong and lightweight material commonly used in high-performance applications. Forged pistons like these are built to withstand the higher cylinder pressures and temperatures found in performance or racing engines, offering improved durability over cast pistons. Each piston weighs approximately 514 grams, contributing to a balanced rotating assembly.

This set includes all eight pistons needed for a complete engine build. 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.