What is the compression ratio with these pistons?

The dish volume is -10.5cc. The final compression ratio will depend on your cylinder head volume, head gasket thickness, and deck height. You will need to calculate this based on your specific engine combination.

Are these pistons suitable for a naturally aspirated or forced induction build?

These are forged pistons, which are stronger and more durable than cast pistons. This makes them well-suited for high-performance applications, including those with forced induction or high compression naturally aspirated setups.

What is the lead time for these pistons since they are made to order?

As these pistons are made to order, lead times can vary. Please call us directly to get the most accurate information on availability and expected delivery for your specific order.

Mahle Hemi Piston Set 4.055in Bore 9299871

Name: Mahle MS Piston Set Hemi 370ci 4.055in Bore 3.58in Stroke 6.20in Rod .927 Pin -10cc CR Set of 8
Brand: Mahle
SKU: mahle-mahle-ms-piston-set-hemi-370ci-4-055in-bore-3-58in-stroke-6-20in-rod-927-p-t14-521761
Price: 1813.95 USD
Availability: BackOrder

Mahle MS Piston Set Hemi 370ci 4.055in Bore 3.58in Stroke 6.20in Rod .927 Pin -10cc CR Set of 8

$1813.95

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 Hemi 370ci 4.055in Bore 3.58in Stroke 6.20in Rod .927 Pin -10cc CR Set of 8

Key Features

Fits Chrysler Hemi 370 cu in engines.
Set includes 8 forged pistons.
Features a 4.055 inch bore.
Designed with a -10.5cc dish for specific compression ratios.
Utilizes a .927 inch wrist pin.
Built with a 6.200 inch rod length.

These pistons are designed for Chrysler Hemi 370 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

Mahle is a well-known name in engine components, particularly for their expertise in pistons and rings. This Mahle MS Piston Set is built for Hemi engines displacing 370 cubic inches, designed for builders looking for a solid foundation for a performance build. These pistons are crucial for managing the combustion process, converting the explosive force of fuel into the rotational power that drives your vehicle.

This set features a 4.055-inch bore and a 3.580-inch stroke, with a 6.200-inch rod length. The pistons have a -10.5cc dish, which is important for achieving the desired compression ratio with your specific cylinder head and gasket combination. They use a .927-inch pin, a common size for many performance applications. The construction is forged, meaning the aluminum is shaped under extreme pressure, resulting in a stronger, more durable piston that can withstand higher cylinder pressures and temperatures compared to cast pistons. This makes them a popular choice for modified engines that see regular hard use.

This is a set of 8 pistons, intended for a complete engine rebuild. Please note that these pistons are made to order, so please call for details regarding lead times and specific application questions. Also, be aware that this product is not CARB approved and cannot be shipped to California. It also carries a Prop 65 warning.