What is the compression ratio achieved with these pistons?

These pistons feature a -20cc dish volume. When used with the specified crankshaft stroke and connecting rod length, they achieve a 10.0:1 compression ratio.

What material are these pistons made from?

The pistons are constructed from 4032 aluminum. This material is chosen for its strength and favorable thermal expansion characteristics, making it well-suited for 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 SBF 408ci Piston Set 930248730

Name: Mahle MS Piston Set SBF 408ci 4.030in Bore 4.000in Stroke 6.2in Rod .927 Pin -20cc 10.0 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-sbf-408ci-4-030in-bore-4-000in-stroke-6-2in-rod-927-pi-t14-29425
Price: 860.80 USD
Availability: BackOrder

Mahle MS Piston Set SBF 408ci 4.030in Bore 4.000in Stroke 6.2in Rod .927 Pin -20cc 10.0 CR Set of 8

$860.80

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 Piston Set SBF 408ci 4.030in Bore 4.000in Stroke 6.2in Rod .927 Pin -20cc 10.0 CR Set of 8. Built for performance SBF engines.

Key Features

Fits Ford Small Block 408 cu in engines.
Piston bore size is 4.030 inches.
Designed for a 4.000 inch crankshaft stroke.
Compatible with 6.2 inch connecting rods.
Features a -20cc dish volume for a 10.0:1 compression ratio.
Constructed from 4032 aluminum for strength and thermal properties.

⚠️ 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, trusted for their commitment to precision and performance. This Mahle MS Piston Set is built for Ford Small Block (SBF) engines aiming for a 408 cubic inch displacement. If you're assembling or rebuilding a performance-oriented SBF, these pistons are designed to handle the demands of a higher-output engine.

This set features pistons with a 4.030-inch bore and are designed to work with a 4.000-inch stroke crankshaft and a 6.2-inch connecting rod. The pistons have a -20cc dish volume, which, when paired with the specified components, results in a 10.0:1 compression ratio. This compression level is a popular choice for naturally aspirated or forced induction builds, offering a good balance of power and drivability. The pistons are constructed from 4032 aluminum, a material known for its strength and thermal expansion properties, making it suitable for performance applications. Each piston weighs in at 409 grams, contributing to a balanced rotating assembly.

This set includes eight pistons, enough for a complete V8 engine. 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.