Cylinder Head Gasket

Utilizes a steel reinforced fiber material with steel fire rings at each bore to seal off the combustion chamber. Cometic CFM is a perforated-galvanized steel core with an asbestos-free fiber material that is applied to both sides.

Additional Information

Coventry Climax FWB/FWE .043in. CFM-20 Cylinder Head Gasket; 78mm Bore

Application Summary

Coventry Climax FWB/E

Part Type

Engine Cylinder Head Gasket

Product Overview

Cometic Head Gaskets are developed with the performance enthusiast in mind. With so many individual requirements for each motor Cometic offers a number of options to suit your specific motor and needs.

*MLS*
The Cometic MLS gasket is comprised of three layers of Stainless Steel. Cometic uses Stainless steel for increased strength, it's ability to rebound and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material (Viton) designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 2500C or 4820F.

The center or shim layer of the gasket is comprised of an uncoated Stainless Steel layer, which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks.

The composition of MLS will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is necessary. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion.

*CFM-20*
A perforated steel core with an elastomer surface is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils.

*COPPER*

• Asbestos-Free Fiber Material
• Conforms load distribution across the sealing area
• Creates less bore distortion
• No sealants or re-torque required

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Head Gasket, CFM-20, 3.070 in./78.00mm. Bore, .043 in. Compressed Thickness, TVR, Each

Cometic CFM-20 head gaskets are the perfect replacement gaskets for your ride. These gaskets are produced from a high quality perforated steel core that has an elastomer surface. This construction allows heat to be drawn evenly across the surface, providing maximum sealing characteristics. Don't waste your time with lesser head gaskets, keep your ride on the road with Cometic CFM-20 head gaskets.