What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic head gasket is .051 inches. This measurement is important for ensuring proper compression ratios and valve-to-piston clearance.

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

Viton is a heat-resistant rubber material that can withstand temperatures up to 482°F (250°C). It's used on the outer layers of this gasket to provide a robust seal in harsh engine environments and handle the heat generated by high-output engines.

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

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require any additional sealants. This helps ensure a clean installation and a reliable seal.

Specifications

Brand: Cometic Gasket
Part #: C5746-051
UPC: 191070138714

Cometic Chevrolet ZL1 Mark-IV Big Block V8 .051in MLS Cylinder Head Gasket - 4.250in Bore

Name: Cometic Chevrolet ZL1 Mark-IV Big Block V8 .051in MLS Cylinder Head Gasket - 4.250in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevrolet-zl1-mark-iv-big-block-v8-051in-mls-cylinder-hea-t14-805095
Price: 114.06 USD
Availability: BackOrder

$114.06

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Fits 1969, 2009-2013, 2019 Chevrolet Corvette. Cometic .051in MLS head gasket with a 4.250in bore, built for high output engines.

Key Features

Fits 1969, 2009-2013, and 2019 Chevrolet Corvette.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with Viton, a heat-resistant rubber material suitable for high temperatures.
Compressed operating thickness is .051 inches.
Bore size is 4.250 inches, designed for specific Big Block V8 engines.
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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Will it fit your car?

Fits these vehicles

Chevrolet Camaro 1969
Chevrolet Corvette 1969, 2009-2013, 2019

About this part

Product Details

If you're working on a 1969, 2009-2013, or 2019 Chevrolet Corvette, this Cometic Multi-Layer Steel (MLS) head gasket is what you need to seal your Mark-IV Big Block V8 engine. It's designed to handle the demands of high-output engines, ensuring a solid seal without needing extra sealants.

This gasket is constructed with 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 both aluminum and cast iron engine blocks. The compressed thickness is .051 inches, and it has a 4.250-inch bore, making it suitable for specific big block V8 applications.