What is the compressed thickness of this head gasket?

The compressed operating thickness of this Cometic head gasket is 0.080 inches. This measurement is critical for ensuring proper compression ratios and valve-to-piston clearance.

Does this gasket require any sealant?

No, Cometic MLS head gaskets are designed to provide maximum sealing performance on their own and do not require additional sealants. The Viton coating on the outer layers ensures a tight seal.

What is the bore size of this gasket?

This head gasket has a bore size of 4.540 inches. It's important to match the bore size to your engine's specifications for optimal performance and sealing.

Specifications

Brand: Cometic Gasket
Part #: C5333-080
UPC: 191070038472

Cometic GM Gen-V/VI Big Block V8 .080in MLS Cylinder Head Gasket - 4.540in Bore

Name: Cometic GM Gen-V/VI Big Block V8 .080in MLS Cylinder Head Gasket - 4.540in Bore
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-gm-gen-v-vi-big-block-v8-080in-mls-cylinder-head-gasket-4-t14-806628
Price: 163.97 USD
Availability: BackOrder

$163.97

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic GM Gen-V/VI Big Block V8 .080in MLS head gasket. Bore size 4.540in. Built for high output engines.

Key Features

Fits many Chevrolet and GMC trucks from 1991-2000.
Multi-Layer Steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are embossed and coated with Viton rubber for heat resistance up to 482°F (250°C).
Designed for high-output engines and requires no additional sealants.
Suitable for mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks.
Compressed operating thickness is 0.080 inches with a 4.540-inch bore.

⚠️ 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?

About this part

Product Details

If you're rebuilding the top end of your GM Gen-V/VI Big Block V8, getting the right head gasket is crucial for a solid seal. This Multi-Layer Steel (MLS) gasket from Cometic is built to handle the demands of high-output engines, ensuring reliable performance and preventing leaks between your cylinder head and engine block.

Cometic uses multiple layers of stainless steel for increased strength and corrosion resistance. 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 blocks. This construction means the gasket provides a strong seal without needing any additional sealants, and it's designed to withstand the forces created when mating different metals like aluminum heads to cast iron blocks. The compressed thickness is .080 inches with a 4.540-inch bore, making it suitable for a range of GM big block applications.

This gasket fits a wide variety of Chevrolet and GMC trucks from the early 90s through the late 90s, including models like the Chevrolet C1500 and GMC C2500. Always double-check the fitment data to ensure it matches your specific vehicle.