What is included in this Mahle piston set?

This set includes eight forged pistons, eight wrist pins, and eight sets of locks. It is designed as a complete replacement assembly for your Hemi 6.4L engine.

What is the compression ratio with these pistons?

These pistons are designed to achieve an 11.0:1 compression ratio when used with the specified stroke and rod length. This is a popular ratio for many performance Hemi builds.

Can these pistons be used in any Hemi 6.4L engine?

These pistons are specifically designed for the Chrysler Hemi 392 cubic inch engine. They are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle Hemi 6.4L Piston Set 930279090

Name: Mahle Piston Set Hemi 6.4L 392ci 4.090in Bore 3.724in Stroke 6.20in Rod 11.0CR Set of 8
Brand: Mahle
SKU: mahle-mahle-piston-set-hemi-6-4l-392ci-4-090in-bore-3-724in-stroke-6-20in-rod-11-t14-96941
Price: 939.80 USD
Availability: InStock

Mahle Piston Set Hemi 6.4L 392ci 4.090in Bore 3.724in Stroke 6.20in Rod 11.0CR Set of 8

$939.80

Only 3 left in stock

Mahle Piston Set Hemi 6.4L 392ci 4.090in Bore 3.724in Stroke 6.20in Rod 11.0CR Set of 8. Forged replacement assembly for your Hemi.

Key Features

This product is a set of eight forged pistons for Hemi 6.4L 392ci engines.
Features a 4.090 inch bore and a 3.724 inch stroke.
Designed with a 6.200 inch connecting rod length and 1.211 inch compression height.
Includes 0.945 inch wrist pins and 3.6cc valve reliefs.
Achieves an 11.0:1 compression ratio.
Constructed from 4032 aluminum alloy for durability and thermal properties.

This piston set is designed for Chrysler Hemi 392 cu in engines. It is not CARB approved and cannot be shipped to California.

⚠️ 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

This Mahle piston set includes eight forged pistons, ready to be installed in your Hemi 6.4L 392 cubic inch engine. These are designed as a direct drop-in forged replacement assembly, meaning they are built to fit and function like the original components but with the strength of forged construction. This is a solid choice if you're rebuilding the top end of your engine and need reliable, well-built pistons that can handle the demands of a performance Hemi.

Each piston in this set features a 4.090-inch bore and is designed to work with a 3.724-inch stroke and a 6.200-inch connecting rod. The compression height is 1.211 inches, and they utilize a 0.945-inch wrist pin. With a 3.6cc valve relief volume, these pistons achieve an 11.0:1 compression ratio, which is a common target for many performance builds. The pistons themselves are constructed from 4032 aluminum alloy, known for its good thermal expansion properties and durability, making them suitable for a wide range of Hemi applications. Each piston weighs in at approximately 453 grams.

It's important to note that this piston set is 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 longevity of your engine.