What is the compressed thickness of this Cometic head gasket?

The compressed operating thickness for this Cometic MLS head gasket is .036 inches. This is achieved through its multi-layer steel construction and the specific thickness of the gasket itself.

Do I need to use any sealant with this head gasket?

No, you do not need to use any additional sealants with this Cometic MLS head gasket. The Viton rubber coating on the outer layers is designed to provide a complete seal on its own.

What is the bore size and thickness of this gasket?

This gasket is designed for a 4.060-inch bore and has an uncompressed thickness of .070 inches. The manufacturer specifies a compressed operating thickness of .036 inches.

Specifications

Brand: Cometic Gasket
Part #: C5269-070
UPC: 191070474942

Cometic Chevy Gen1 Small Block V8 .070in MLS Cylinder Head Gasket - 4.060in Bore

Name: Cometic Chevy Gen1 Small Block V8 .070in MLS Cylinder Head Gasket - 4.060in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevy-gen1-small-block-v8-070in-mls-cylinder-head-gasket--t14-806373
Price: 131.62 USD
Availability: BackOrder

$131.62

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Cometic Chevy Gen1 Small Block V8 .070in MLS Cylinder Head Gasket - 4.060in Bore. This multi-layer steel gasket offers improved sealing for high-output engines.

Key Features

This product is a Cometic Chevy Gen1 Small Block V8 .070in MLS Cylinder Head Gasket with a 4.060in Bore.
It is constructed from multiple layers of stainless steel for increased strength and rebound resistance.
The outer layers are coated on both sides with Viton, a heat-resistant rubber material rated up to 482 F.
The compressed operating thickness of this gasket is .036 inches.
This gasket is designed for high-output engines and requires no additional sealants.
It is suitable for use with aluminum heads on aluminum blocks or aluminum heads on 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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About this part

Product Details

When you're rebuilding the top end of your Chevy Gen 1 Small Block V8, getting the right cylinder head gasket is crucial for a solid seal. This Cometic Multi-Layer Steel (MLS) gasket is built for a 4.060-inch bore and has a thickness of .070 inches, with a compressed operating thickness of .036 inches. It's designed to handle the demands of higher output engines, ensuring a reliable seal between your cylinder heads and block.

What makes these MLS gaskets stand out is their construction. They're made from multiple layers of stainless steel, which gives them increased strength and the ability to rebound, helping to resist corrosion. The outer layers are coated on both sides with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This Viton coating is tough enough for various sealing environments and surface finishes, and it means you don't need to use any extra sealants. The center layer is stainless steel and can be varied to achieve different thicknesses, like the .070 inches on this particular gasket.

This gasket fits a wide range of vehicles, including many Chevrolet and GMC trucks and cars from the early to mid-1980s, as well as models like the Avanti II and Checker Marathon. It's a well-built component that helps ensure your engine runs smoothly and efficiently.