What is the compressed thickness of this head gasket?

When properly installed and compressed, this head gasket has an operating thickness of 0.036 inches. This thickness is achieved through its multi-layer steel design.

Does this head gasket require any additional sealants?

No, Cometic's Multi-Layer Steel (MLS) head gaskets are designed to provide maximum sealing performance without the need for additional sealants. The Viton coating on the outer layers ensures a tight seal.

What is Viton and why is it used on this gasket?

Viton is a heat-resistant rubber material that can withstand high temperatures, up to 482°F (250°C). It's used on the outer layers of this gasket to create a robust seal against the engine block and cylinder head, meeting the demands of harsh sealing environments.

Specifications

Brand: Cometic Gasket
Part #: C4278-089
UPC: 191070107956

Cometic 87-92 Toyota Supra 84mm Bore .089 inch thick MLS Head Gasket

Name: Cometic 87-92 Toyota Supra 84mm Bore .089 inch thick MLS Head Gasket
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-87-92-toyota-supra-84mm-bore-089-inch-thick-mls-head-gask-t14-261828
Price: 240.00 USD
Availability: BackOrder

$240.00

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Fits 1949-1954 Jaguar XK120. Cometic MLS head gasket with 84mm bore and .089" thickness for reliable sealing.

Key Features

Fits 1949-1954 Jaguar XK120, 1955-1957 Jaguar XK140, 1958-1961 Jaguar XK150, 1989-1992 Toyota Cressida, and 1987-1992 Toyota Supra.
Multi-Layer Steel (MLS) construction offers increased strength and rebound resistance.
Outer layers are coated on both sides with Viton, a heat-resistant elastomer for reliable sealing.
Designed for an 84mm bore, with a compressed operating thickness of 0.036 inches.
The center shim layer is stainless steel, allowing for varied thickness requirements.
No additional sealants are required 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

No-fit, no charge. Wrong part? Send it back, free return label.

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Will it fit your car?

About this part

Product Details

When you're rebuilding the top end of your Jaguar XK120, a solid head gasket is crucial for sealing the combustion chamber and coolant passages. This Multi-Layer Steel (MLS) head gasket from Cometic is built to handle the pressures of a well-tuned engine.

This gasket is constructed with multiple layers of stainless steel, which gives it strength and helps it resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482°F (250°C). This coating helps ensure a good seal against the cylinder head and block, even with different materials like aluminum heads and cast iron blocks. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .089 inches specified for this gasket, which is designed for an 84mm bore. This design means you don't need extra sealants, making installation more straightforward.

This gasket is a well-built option for your XK120 rebuild, offering reliable sealing for your engine's critical components.