What is the compressed thickness of this head gasket?

The compressed operating thickness for this Cometic head gasket is 0.092 inches. This measurement is critical for ensuring proper compression ratios and valve-to-piston clearance in your engine build.

Do I need to use any sealant with this gasket?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require any 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 type of heat-resistant rubber material that can withstand high temperatures, up to 482 degrees Fahrenheit. It's used on the outer layers of this gasket to create a durable and effective seal in demanding engine environments.

Specifications

Brand: Cometic Gasket
Part #: C5331-092
UPC: 191070038168

Cometic Chevrolet Mark-IV Big Block V8 .092in MLS Cylinder Head Gasket - 4.630in Bore

Name: Cometic Chevrolet Mark-IV Big Block V8 .092in MLS Cylinder Head Gasket - 4.630in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevrolet-mark-iv-big-block-v8-092in-mls-cylinder-head-ga-t14-805845
Price: 163.97 USD
Availability: BackOrder

$163.97

On Backorder

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Cometic Chevrolet Mark-IV Big Block V8 .092in MLS Head Gasket - 4.630in Bore. Built for high output engines, it offers maximum sealing performance.

Key Features

Fits 1965-1986 Chevrolet vehicles including Impala, Chevelle, and C10 Pickup.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with heat-resistant Viton rubber for maximum sealing.
Designed for high-output engines, providing reliable sealing without additional sealants.
Suitable for mating aluminum heads to aluminum or cast iron blocks.
Features a 4.630-inch bore and a compressed operating thickness of 0.092 inches.

⚠️ 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

If you're working on a Chevrolet Mark-IV Big Block V8 engine, this Cometic Multi-Layer Steel (MLS) head gasket is a solid choice for sealing your cylinder heads. It's designed with a 4.630-inch bore and a compressed thickness of 0.092 inches, making it suitable for a wide range of classic and performance Chevrolet applications, including models like the Impala, Chevelle, and C10 Pickup from the mid-60s through the mid-80s.

This gasket is built tough using multiple layers of stainless steel, which gives it strength and helps it resist corrosion. The outer layers are coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This advanced construction means the gasket seals exceptionally well on its own, without needing any extra sealants, and it works great whether you're mating aluminum heads to an aluminum block or to a cast iron block. The stainless steel layers can also handle the different expansion rates between these materials.