What is the compression ratio with these pistons?

These Mahle pistons feature a -1cc dish volume, which results in a 10.1:1 compression ratio when used with the specified stroke and rod length for a 371 Hemi engine.

Are these pistons suitable for daily driving or just performance builds?

The forged 4032 aluminum construction makes these pistons very strong and durable, ideal for high-performance Hemi engines that experience increased cylinder pressures and temperatures. They are well-suited for demanding applications.

What is included in this piston set?

This set includes eight Mahle MS series pistons, each with a 0.984 inch wrist pin. It is designed for a 371 cubic inch Hemi engine with a 4.060 inch bore.

Mahle Hemi Piston Set 4.06in Bore 10.1 CR 930277660

Name: Mahle MS Piston Set Hemi 371ci 4.06in Bore 3.58in Stroke 6.240in Rod .984 Pin -1cc 10.1 CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-hemi-371ci-4-06in-bore-3-58in-stroke-6-240in-rod-984-p-t14-29257
Price: 904.93 USD
Availability: BackOrder

Mahle MS Piston Set Hemi 371ci 4.06in Bore 3.58in Stroke 6.240in Rod .984 Pin -1cc 10.1 CR Set of 8

$904.93

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle Hemi Piston Set for 371ci engines. Features a 4.06in bore and 10.1 compression ratio.

Key Features

Fits Chrysler Hemi 371 cu in engines.
Forged 4032 aluminum construction for strength and durability.
4.060 inch bore size.
-1cc piston dish volume for a 10.1:1 compression ratio.
Includes 8 pistons with 0.984 inch wrist pins.
Each piston weighs approximately 442 grams.

This piston set is designed for Chrysler Hemi 371 cubic inch engines. Please verify 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

These Mahle MS Piston sets are built with 4032 aluminum, a material known for its strength and thermal expansion properties, making it a solid choice for high-performance Hemi engines. Each piston features a -1cc dish volume, contributing to a 10.1 compression ratio when paired with the specified stroke and rod length. This specific set is designed for 371 cubic inch Hemi applications, with a 4.060 inch bore and a 3.580 inch stroke, utilizing a 6.242 inch connecting rod and a 0.984 inch wrist pin.

The Mahle MS series pistons are forged, which means they undergo a process that aligns the metal's grain structure, resulting in a much stronger and more durable component than cast pistons. This strength is crucial for handling the increased cylinder pressures and temperatures found in performance Hemi builds. Each piston weighs in at approximately 442 grams, a detail that contributes to overall engine balance and reduced reciprocating mass. This set includes eight pistons, ready for your Hemi engine rebuild.

When rebuilding a Hemi, especially one destined for performance use, attention to detail in piston selection is key. These Mahle pistons are a well-built option that balances strength, weight, and the specific compression ratio needed for optimal performance in a 371 cubic inch application. Please note that this part is not CARB approved and cannot be shipped to California. Always refer to manufacturer instructions for proper installation and assembly procedures.