What is the compression ratio with these pistons?

These Mahle pistons feature a -6cc dish volume, which results in a 10.0:1 compression ratio when used with appropriate cylinder heads and a gasket. This ratio is suitable for many performance street applications.

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

The pistons are forged from 4032 aluminum alloy. This material is chosen for its strength and controlled thermal expansion, which helps them withstand the high temperatures and pressures of performance engines while maintaining proper clearances.

Are these pistons compatible with all Ford Small Block engines?

These pistons are specifically designed for Ford Small Block engines with a 348 cubic inch displacement and a 4.040-inch bore. It is crucial to confirm that your engine's specifications match these requirements before installation.

Mahle SBF 348ci Piston Set 4.040in Bore 930244740

Name: Mahle MS Piston Set SBF 348ci 4.040in Bore 3.4in Stroke 5.4in Rod .927 Pin -6cc 10.0 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-sbf-348ci-4-040in-bore-3-4in-stroke-5-4in-rod-927-pin--t14-28887
Price: 783.94 USD
Availability: BackOrder

Mahle MS Piston Set SBF 348ci 4.040in Bore 3.4in Stroke 5.4in Rod .927 Pin -6cc 10.0 CR Set of 8

$783.94

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 348ci engines. Features a 4.040in bore and 10.0 CR for improved performance.

Key Features

Fits Ford Small Block 348 cubic inch engines.
Forged from 4032 aluminum alloy for strength and durability.
4.040-inch bore size.
Features a -6cc dish volume for a 10.0:1 compression ratio.
Includes a 5.4-inch rod length and .927-inch pin diameter.
Each piston weighs 405 grams for balanced engine performance.

This piston set is designed for Ford Small Block 348 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

These Mahle MS forged pistons are built for a 4.040-inch bore, designed for Ford Small Block 348 cubic inch engines. They feature a 3.4-inch stroke and a 5.4-inch rod length, with a .927-inch pin diameter. The -6cc dish volume contributes to a 10.0:1 compression ratio when paired with the right cylinder heads and gasket combination, making them a solid choice for a performance rebuild where you want a noticeable bump in power without going too extreme.

Crafted from 4032 aluminum alloy, these pistons are well-built for durability and performance. The 4032 alloy offers a good balance of strength and thermal expansion characteristics, which is important for managing heat and stress in a high-performance engine. Each piston weighs in at 405 grams, a consistent weight that helps ensure engine balance. This set includes eight pistons, providing everything you need to outfit a complete V8 engine.

When rebuilding your engine with these pistons, remember they are not CARB approved and cannot be shipped to California. It's also important to note that this product is subject to California's Proposition 65 warning. Ensure you have the correct supporting components, such as appropriate cylinder heads and a compatible camshaft, to achieve your desired compression ratio and performance goals.