What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic MLS head gasket is 0.040 inches. This measurement is critical for achieving the correct compression ratio in your engine build.

Do I need to use any sealant with this gasket?

No, this Cometic MLS head gasket is designed to provide maximum sealing performance without the need for additional sealants. The Viton coating on the outer layers creates a robust seal on its own.

What types of cylinder head and block combinations can this gasket be used with?

This gasket is ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. Its multi-layer steel design can withstand the shearing forces created by dissimilar metals.

Specifications

Brand: Cometic Gasket
Part #: C5446-040
UPC: 191070068707

Cometic Chrysler Gen-2 Hemi .040in MLS Cylinder Head Gasket - 4.375in Bore

Name: Cometic Chrysler Gen-2 Hemi .040in MLS Cylinder Head Gasket - 4.375in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-gen-2-hemi-040in-mls-cylinder-head-gasket-4-375i-t14-807143
Price: 96.54 USD
Availability: InStock

$96.54

Only 3 left in stock

Cometic Chrysler Gen-2 Hemi MLS head gasket with a 4.375in bore and 0.040in compressed thickness. Built for high-output engines.

Key Features

Fits a wide range of Chrysler Gen-2 Hemi engines, including Dodge Challenger, Dodge Charger, and Plymouth Barracuda models.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Features embossed outer layers coated with Viton, a heat-resistant elastomer rated up to 482°F.
Compressed operating thickness is 0.040 inches.
Designed for high-output engines and compatible with both aluminum-to-aluminum and aluminum-to-cast iron block configurations.
Requires no additional sealants for installation.

⚠️ 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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About this part

Product Details

This Cometic Multi-Layer Steel (MLS) head gasket is built with a compressed operating thickness of 0.040 inches, making it a solid choice for your Chrysler Gen-2 Hemi engine build. It's designed to handle the demands of high-output engines, whether you're pairing aluminum heads with an aluminum block or aluminum heads with a cast iron block. The multiple layers of stainless steel provide increased strength and resistance to corrosion, while the outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit.

The embossed outer layers and Viton coating are specifically chosen to create a strong seal without needing additional sealants, which is a big help during installation. This design also helps manage the shearing forces that can occur when different metals are joined. The center layer is uncoated stainless steel, allowing for precise thickness control to meet specific engine build requirements. This gasket is well-suited for a range of classic Mopar vehicles, including models like the Dodge Charger, Plymouth Barracuda, and Dodge Challenger from the late 60s and early 70s.