What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic MLS head gasket is .036 inches. The gasket itself has an uncompressed thickness of .066 inches.

Does this head gasket require any sealant?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance for high-output engines and do not require any additional sealants.

What materials are the outer layers of the gasket coated with?

The outer layers of this gasket are embossed and coated on both sides with Viton, a heat-resistant rubber material. Viton is designed to handle demanding sealing environments and temperatures up to 482°F (250°C).

Specifications

Brand: Cometic Gasket
Part #: C5958-066
UPC: 191070145187

Cometic Ford Boss 302 .066in MLS Cylinder Head Gasket - 4.030in Bore

Name: Cometic Ford Boss 302 .066in MLS Cylinder Head Gasket - 4.030in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-ford-boss-302-066in-mls-cylinder-head-gasket-4-030in-bore-t14-807880
Price: 131.62 USD
Availability: BackOrder

$131.62

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Fits 1969-1971 DeTomaso Mangusta. Cometic .066in MLS head gasket with 4.030in bore, designed for high-output engines.

Key Features

Fits 1969-1971 DeTomaso Mangusta, 1969-1971 Ford Mustang, and 1969-1970 Mercury Cougar.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with Viton, a heat-resistant rubber material rated up to 482°F (250°C).
Designed for high-output engines and seals effectively without requiring additional sealants.
Features a 4.030-inch bore and a .066-inch gasket thickness, with a compressed operating thickness of .036 inches.
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?

Fits these vehicles

DeTomaso Mangusta 1969-1971
Ford Mustang 1969-1971
Mercury Cougar 1969-1970

About this part

Product Details

Cometic Gasket is known for making well-built sealing components, and this Multi-Layer Steel (MLS) head gasket is a prime example. If you're working on a 1969-1971 DeTomaso Mangusta, especially one with a Ford Boss 302 engine, this gasket is built to handle the demands of high-output performance.

This gasket uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C) and works well with different block and head materials, including aluminum and cast iron. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .066 inches this gasket is set at, with a compressed operating thickness of .036 inches. This design means it seals effectively without needing any additional sealants.

This particular gasket is specified for a 4.030-inch bore and is designed to work with World Products Man-o-War blocks and SVO heads, making it a solid option for rebuilding or restoring your Boss 302 engine.