What is the compressed thickness of this head gasket?

This Cometic head gasket has a compressed operating thickness of 0.040 inches. This measurement is critical for maintaining proper compression ratios in your engine build.

Can I use this gasket with different block materials?

Yes, these MLS gaskets are designed to work effectively with both aluminum heads on aluminum blocks and aluminum heads on cast iron blocks. The multi-layer steel construction can handle the shearing forces between different metals.

Does this gasket require any special sealants?

No, Cometic MLS head gaskets are engineered to provide maximum sealing performance without the need for additional sealants. They are designed to seal effectively on their own.

Specifications

Brand: Cometic Gasket
Part #: C5447-040

Cometic Chrysler Gen-2 Hemi .040in MLS Cylinder 4.500in Bore Head Gasket

Name: Cometic Chrysler Gen-2 Hemi .040in MLS Cylinder 4.500in Bore Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chrysler-gen-2-hemi-040in-mls-cylinder-4-500in-bore-head--t14-718795
Price: 106.53 USD
Availability: BackOrder

$106.53

On Backorder

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Cometic Chrysler Gen-2 Hemi .040in MLS Head Gasket for 4.500in bore engines. Offers improved sealing for high-output applications.

Key Features

Fits Dodge Challenger, Dodge Charger, Plymouth Barracuda, and many other Chrysler Gen-2 Hemi applications.
Multi-Layer Steel (MLS) construction offers increased strength and rebound resistance.
Outer layers are embossed and coated with Viton rubber for heat resistance up to 482°F (250°C).
Compressed operating thickness is 0.040 inches.
Designed for a 4.500 inch bore size.
Suitable for use with aluminum heads to aluminum blocks, and aluminum heads to cast iron blocks.

⚠️ 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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Will it fit your car?

About this part

Product Details

This is a Cometic Multi-Layer Steel (MLS) head gasket designed for Chrysler Gen-2 Hemi engines with a 4.500 inch bore. It's built with multiple embossed stainless steel layers, and the outer layers are coated with Viton, a heat-resistant rubber material. This construction helps ensure a strong seal for high-output engines, and it's suitable for use with both aluminum and cast iron blocks.

The gasket has a compressed thickness of 0.040 inches. The multi-layer steel design provides increased strength and resistance to corrosion, while the Viton coating on the outer layers handles demanding sealing environments and various surface finishes. These gaskets are designed to work without additional sealants, making installation more straightforward. They are well-suited for applications where the engine is pushed harder than stock, like performance builds or restorations of classic Mopar muscle cars.

This gasket fits a range of classic Chrysler V8 applications, including models like the Dodge Challenger, Dodge Charger, and Plymouth Barracuda from the late 60s and early 70s. It's a solid option when rebuilding or upgrading your Gen-2 Hemi top end.