What is the compression ratio with these pistons?

These Mahle pistons feature a -5.8cc dish volume. When used with the specified 3.622-inch stroke and 6.125-inch connecting rod, they target a 10.2:1 compression ratio.

Are these pistons coated?

Yes, these pistons come with a Thermal Barrier Coating (TBC) on the crown. This coating helps to reflect heat away from the piston, which can improve thermal efficiency and durability in high-performance engines.

What is included in this set?

This is a set of eight Mahle MS pistons. It includes the pistons themselves, along with the necessary wrist pins and locks required for installation into your engine.

Mahle GM LSX Piston Set 4.075" Bore 930226875T

Name: Mahle MS Piston Set GM LSX 378cid 4.075x1.304CH 3.622 Stk 6.125 Rod .927 Pin -5.8cc Coated 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-t14-931324
Price: 1089.77 USD
Availability: BackOrder

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

$1089.77

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 LSX 378cid. 4.075" bore, -5.8cc dish, TBC coated.

Key Features

Fits Chevrolet LS 378 cu in engines.
Features a 4.075-inch bore and 1.304-inch compression height.
Designed for use with a 3.622-inch stroke crankshaft and 6.125-inch connecting rod.
Utilizes a 0.927-inch wrist pin.
Constructed from strong 2618 aluminum alloy.
Includes a Thermal Barrier Coating (TBC) on the piston crown for heat management.

This piston set is designed for Chevrolet LS 378 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 LSX engine, this Mahle MS Piston Set is designed to handle the demands of a serious build. These pistons are specifically made for the 378 cubic inch LSX platform, featuring a 4.075-inch bore and a 1.304-inch compression height. They're engineered to work with a 3.622-inch stroke crankshaft and a 6.125-inch connecting rod, utilizing a 0.927-inch wrist pin.

Mahle uses a 2618 aluminum alloy for these pistons, known for its strength and durability under high stress. They come with a Thermal Barrier Coating (TBC) on the crown, which helps to reduce heat transfer into the piston, keeping combustion temperatures more controlled. This coating can contribute to improved efficiency and longevity in demanding applications. Each piston weighs in at approximately 470 grams, contributing to a balanced rotating assembly. The -5.8cc dish volume helps achieve a 10.2:1 compression ratio with the specified components, making them suitable for naturally aspirated or forced induction setups.

This set includes eight pistons, along with the necessary wrist pins and locks for installation. Please note 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 to ensure optimal performance and reliability for your engine build.