What is the benefit of the Viton coating on this head gasket?

The Viton coating on the outer layers of the gasket is a heat-resistant rubber material. It's designed to withstand harsh sealing environments and high temperatures, up to 482 degrees Fahrenheit, ensuring a reliable seal for high-output engines.

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

No, this Cometic MLS head gasket is designed to provide maximum sealing performance without the need for additional sealants. The multi-layer steel construction and Viton coating create a robust seal on their own.

What types of cylinder head and block material combinations can this gasket be used with?

This gasket is ideal for use with both aluminum heads on aluminum blocks, and also for aluminum heads on cast iron blocks. It's engineered to withstand the shearing forces that can occur between these different materials.

Specifications

Brand: Cometic Gasket
Part #: C5332-045
UPC: 191070086701

Cometic GM Gen-V/VI Big Block V8 .045in MLS Cylinder Head Gasket - 4.375in Bore

Name: Cometic GM Gen-V/VI Big Block V8 .045in MLS Cylinder Head Gasket - 4.375in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-gen-v-vi-big-block-v8-045in-mls-cylinder-head-gasket-4-t14-806606
Price: 114.06 USD
Availability: BackOrder

$114.06

On Backorder

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Cometic GM Gen-V/VI Big Block V8 .045in MLS Cylinder Head Gasket - 4.375in Bore. Features Viton coating for high-output engines.

Key Features

Fits a wide range of GM Gen-V/VI Big Block V8 vehicles.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are embossed and coated with Viton, a heat-resistant elastomer rated up to 482 F.
Compressed operating thickness is 0.045 inches.
Designed for 4.375 inch bore applications.
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

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About this part

Product Details

Starting with a compressed operating thickness of 0.045 inches, this Cometic Multi-Layer Steel (MLS) head gasket is built for serious performance. It's designed for GM Gen-V/VI Big Block V8 engines and features a 4.375-inch bore, making it suitable for a range of trucks and vans like the Chevrolet C1500 and GMC K2500 Suburban from the early to late 90s.

The construction uses multiple layers of stainless steel for increased strength and resistance to corrosion. The outer layers are embossed and coated with Viton, a heat-resistant rubber material that can handle temperatures up to 482 degrees Fahrenheit. This advanced coating ensures a strong seal even under high output conditions, and the gasket doesn't require any additional sealants. It's well-suited for combinations of aluminum heads with aluminum blocks or aluminum heads with cast iron blocks, as it can manage the shearing forces that can occur between different metals.

The center layer is stainless steel and can be varied to achieve different thicknesses, allowing for precise tuning. This gasket is a solid option when you need reliable sealing for demanding engine builds.