What material are these Mahle pistons made from?

These Mahle MS pistons are forged from 2618 aluminum. This material is known for its strength and ability to handle high temperatures and pressures found in performance engines.

What is the compression ratio achieved with these pistons?

With a -5.8cc dish volume, these pistons contribute to a 10.2:1 compression ratio when used with a 6.125-inch rod and a standard stroke.

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 GM LSX Piston Set 4.075" Bore 10.2:1 CR 930226875

Name: Mahle MS Piston Set GM LSX 378cid 4.075x1.304CH 3.622 Stk 6.125 Rod .927 Pin -5.8cc 10.2CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-gm-lsx-378cid-4-075x1-304ch-3-622-stk-6-125-rod-927-pi-t14-348854
Price: 820.08 USD
Availability: InStock

Mahle MS Piston Set GM LSX 378cid 4.075x1.304CH 3.622 Stk 6.125 Rod .927 Pin -5.8cc 10.2CR Set of 8

$820.08

Only 1 left in stock

Mahle MS Piston Set for GM LSX 378 cu in. Features a 4.075" bore and 10.2:1 compression ratio for performance builds.

Key Features

Fits GM LSX 378 cu in. engines.
Forged from 2618 aluminum for strength and durability.
Features a 4.075 inch bore and 3.622 inch stroke.
Compression height is 1.304 inches.
Dish volume is -5.8cc, contributing to a 10.2:1 compression ratio.
Each piston weighs 470 grams.

This piston set is designed for GM LSX 378 cu in. engines. Always confirm compatibility with your specific engine build.

⚠️ 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, especially for their piston designs. This MS Piston Set is built for GM LSX engines displacing 378 cubic inches, offering a solid foundation for a performance rebuild. If you're looking to get into the engine and want a reliable set of pistons that are made to handle the demands of a performance application, this set from Mahle is a strong option.

These pistons are forged from 2618 aluminum, a material chosen for its strength and ability to withstand high temperatures and pressures. They feature a 4.075-inch bore and a 3.622-inch stroke, with a compression height of 1.304 inches. The dish volume is -5.8cc, which helps achieve a 10.2:1 compression ratio when paired with a 6.125-inch rod and a standard stroke. Each piston weighs in at 470 grams, balancing strength with reasonable weight for good engine response. The pin diameter is 0.927 inches, a common size for performance applications.

This set includes eight pistons, ready to be installed in your GM LSX engine. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.