What is the compression ratio achieved with these pistons?

When used with a 3.4-inch stroke and a 5.4-inch connecting rod, these pistons achieve a 9.0:1 compression ratio due to their -16cc dish volume.

What material are these pistons made from and why is it important?

These pistons are forged from 4032 aluminum. This material is chosen for its superior strength and durability compared to cast aluminum, allowing it to withstand higher pressures and temperatures common in performance engine builds.

Are these pistons compatible with all Ford Small Block engines?

This set is specifically designed for Ford Small Block 347 cubic inch engines with a 4.030-inch bore. While they are for Small Blocks, they are not a universal fit for all displacements or bore sizes within the Small Block family.

Mahle SBF 347ci Piston Set 4.030in Bore 930249130

Name: Mahle MS Piston Set SBF 347ci 4.030in Bore 3.4in Stroke 5.4in Rod .927 Pin -16cc 9.0 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-sbf-347ci-4-030in-bore-3-4in-stroke-5-4in-rod-927-pin--t14-28897
Price: 912.97 USD
Availability: BackOrder

Mahle MS Piston Set SBF 347ci 4.030in Bore 3.4in Stroke 5.4in Rod .927 Pin -16cc 9.0 CR Set of 8

$912.97

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 for SBF 347ci engines. Features a 4.030in bore and 9.0 CR for improved performance.

Key Features

This is a set of 8 forged pistons from Mahle.
Designed for Ford Small Block 347 cubic inch engines.
Features a 4.030-inch bore diameter.
The -16cc dish volume contributes to a 9.0:1 compression ratio.
Constructed from 4032 aluminum for strength and durability.
Includes 0.927-inch wrist pins.

This piston set is designed for Ford Small Block 347 cubic inch engines. Please verify compatibility with your specific engine configuration.

⚠️ 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

If you're rebuilding a Ford Small Block 347 cubic inch engine, you need pistons that can handle the demands of a performance build. This Mahle MS Piston Set is designed for that purpose, offering a solid foundation for your engine's top end. These pistons are forged from 4032 aluminum, a material known for its strength and durability, making them a reliable choice for both street and track applications.

Each piston in this set has a 4.030-inch bore and a -16cc dish volume, which helps achieve a 9.0:1 compression ratio when paired with a 3.4-inch stroke and a 5.4-inch connecting rod. The 0.927-inch pin diameter is standard for many performance applications. Forged pistons like these offer improved strength over cast pistons, allowing them to withstand higher cylinder pressures and temperatures, which is crucial for performance builds. They are also lighter than cast pistons, which can help reduce overall engine weight and improve responsiveness.

This set includes eight pistons, the full complement needed for a V8 engine. It's important to note that these pistons are not CARB approved and cannot be shipped to California. Ensure you check all manufacturer specifications and installation guidelines before beginning your engine build.