What is the compression ratio achieved with this piston set?

This Mahle MS Piston Set is designed to achieve a 9.3:1 compression ratio. This is calculated based on the piston's -16cc dish volume and other engine specifications like bore, stroke, and head volume.

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

These pistons are constructed from 4032 aluminum. This alloy is chosen for its excellent strength and favorable thermal expansion characteristics, making it well-suited for high-performance and high-stress engine applications.

Are these pistons compatible with all LS engines?

These pistons are specifically designed for GM LS engines with a 363 cubic inch displacement and are compatible with LS1, LS2, and LS6 style cathedral port heads. It is crucial to confirm that your engine build matches these specifications for proper fitment.

Mahle GM LS Piston Set 363ci 3.800in Bore 930219600

Name: Mahle MS Piston Set GM LS 363ci 3.800in Bore 4in Stroke 6.125in Rod .927 Pin -16cc 9.3 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-gm-ls-363ci-3-800in-bore-4in-stroke-6-125in-rod-927-pi-t14-30068
Price: 929.98 USD
Availability: BackOrder

Mahle MS Piston Set GM LS 363ci 3.800in Bore 4in Stroke 6.125in Rod .927 Pin -16cc 9.3 CR Set of 8

$929.98

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 GM LS 363ci engines. Features a 3.800in bore and 9.3 CR for improved performance.

Key Features

Fits GM LS 363 cu in engines.
Set includes 8 forged pistons.
Features a 3.800-inch bore and 4.000-inch stroke.
Designed for LS1, LS2, and LS6 style cathedral port heads.
Utilizes a -16cc dish volume for a 9.3:1 compression ratio.
Constructed from 4032 aluminum for strength and thermal properties.

This piston set is designed for Chevrolet LS 363 cu in 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 building a high-performance GM LS engine for a 363 cubic inch displacement, this Mahle MS Piston Set is designed to handle the demands of a serious build. These pistons are crafted to work with LS1, LS2, and LS6 style cathedral port heads, making them a versatile choice for many LS-based projects. The set includes eight pistons, ensuring you have everything needed for a complete engine rebuild.

Mahle has engineered these pistons with a 3.800-inch bore and a 4.000-inch stroke, contributing to the 363 cubic inch displacement. They feature a -16cc dish volume, which, combined with the other specifications, results in a 9.3:1 compression ratio when used with compatible components. The pistons are constructed from 4032 aluminum, a material known for its strength and thermal expansion properties, making it well-suited for high-stress applications. Each piston weighs approximately 365 grams, and they utilize a 0.927-inch wrist pin, with a 6.125-inch connecting rod length specified for this setup. This combination of features aims to provide a robust and reliable foundation for your engine build.

It's important to note that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's detailed specifications and installation instructions to ensure proper fitment and performance for your specific engine build. This set is a solid option for those looking to achieve a specific displacement and compression target in their GM LS engine.