What is the compression ratio achieved with these pistons?

These Mahle MS pistons, with their -16cc dish volume and designed for a 3.4-inch stroke and 5.4-inch rod, aim for a 9.0:1 compression ratio in a 349 cubic inch Ford Small Block engine. This ratio is suitable for various performance applications.

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

The pistons are forged from 4032 aluminum. This material is chosen for its high strength and resistance to thermal expansion, making it a durable choice for performance engines that experience higher temperatures and pressures than stock.

Are these pistons compatible with all connecting rods?

These pistons feature a standard 0.927-inch pin diameter, which is common for many performance connecting rods. It's always best to confirm compatibility with your specific connecting rod choice before installation.

Mahle SBF 348ci Piston Set 4.040in Bore 930249140

Name: Mahle MS Piston Set SBF 348ci 4.040in 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-348ci-4-040in-bore-3-4in-stroke-5-4in-rod-927-pin--t14-28898
Price: 912.97 USD
Availability: BackOrder

Mahle MS Piston Set SBF 348ci 4.040in 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 Ford Small Block 349 cu in. 4.040in bore, -16cc dish, 9.0 CR. Set of 8.

Key Features

Fits Ford Small Block 349 cu in. engines.
Forged from 4032 aluminum for strength and durability.
4.040-inch bore size.
-16cc dish volume contributes to a 9.0:1 compression ratio.
Includes 5.4-inch rod length compatibility and a 0.927-inch pin diameter.
Each piston weighs approximately 387 grams.

This piston set is designed for Ford Small Block 349 cu in. engines. It is not CARB approved and cannot be shipped to California.

⚠️ 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's MS Piston Set is built for Ford Small Block 349 cubic inch engines, featuring a 4.040-inch bore. These pistons are forged from 4032 aluminum, a material known for its strength and durability, making them a solid choice for performance builds. The -16cc dish volume, combined with a 3.4-inch stroke and 5.4-inch rod length, helps achieve a 9.0:1 compression ratio, which is ideal for naturally aspirated or forced induction applications where pump gas is a consideration.

Each piston in this set weighs approximately 387 grams, contributing to a well-balanced rotating assembly. The 0.927-inch pin diameter is standard for many performance applications, ensuring compatibility with a wide range of connecting rods. Mahle's attention to detail in the forging process means these pistons are well-made and ready to handle the demands of a performance engine rebuild. This set includes all eight pistons needed for a complete engine build.

Please note that this piston set is not CARB approved and cannot be shipped to California. Always refer to your engine builder's recommendations and manufacturer's installation instructions for proper assembly and tuning.