What is the compressed thickness of this head gasket?

The compressed operating thickness for this Cometic Multi-Layer Steel head gasket is 0.036 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 head 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 reliable seal against the block and head surfaces.

What is the benefit of the Viton coating on the outer layers?

The Viton coating on the outer layers of the gasket is a heat-resistant rubber material that can withstand temperatures up to 482°F (250°C). This helps create a robust seal in demanding engine environments and accommodates various surface finishes.

Specifications

Brand: Cometic Gasket
Part #: C5248-036
UPC: 191070025069

Cometic Chevy Small Block 4.165 inch Bore .036 inch MLS Head Gasket (w/All Steam Holes)

Name: Cometic Chevy Small Block 4.165 inch Bore .036 inch MLS Head Gasket (w/All Steam Holes)
Brand: Cometic Gasket
SKU: cometic-gasket-cometic-chevy-small-block-4-165-inch-bore-036-inch-mls-head-gaske-t14-279124
Price: 97.74 USD
Availability: BackOrder

$97.74

On Backorder

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

Cometic Chevy Small Block .036" MLS head gasket with a 4.165" bore. Built for high-output engines and requires no sealants.

Key Features

Fits a wide range of 1980-1986 Chevrolet and GMC trucks, cars, and SUVs.
Multi-layer steel (MLS) construction offers increased strength and corrosion resistance.
Outer layers are coated with Viton, a heat-resistant rubber material rated up to 482°F (250°C).
Compressed operating thickness is 0.036 inches with a 4.165-inch bore.
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.

⚠️ 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

This Cometic Multi-Layer Steel (MLS) head gasket is built with a compressed operating thickness of 0.036 inches and a 4.165-inch bore, making it a solid choice for rebuilding or upgrading your Chevy Small Block engine. It's designed to handle the demands of high-output applications and fits a wide range of vehicles from 1980 to 1986, including popular models like the Chevrolet C10 and GMC C1500. The multi-layer stainless steel construction offers increased strength and resistance to corrosion, while the outer layers are coated with Viton, a heat-resistant rubber material capable of sealing effectively in harsh environments.

The MLS design means these gaskets provide maximum sealing performance without needing additional sealants, simplifying installation whether you're mating aluminum heads to aluminum blocks or aluminum heads to cast iron blocks. The center shim layer is made of stainless steel and can be varied to meet different thickness requirements, offering flexibility for various engine builds. The inclusion of all steam holes helps manage heat effectively within the engine.