Cometic Gasket cgsC5248-051 Chevy Small Block .051 in MLS Cylinder Head Gasket

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.051". With Steam Holes. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements. Chevrolet Gen-1 Small Block V8 .051in. MLS Cylinder Head Gasket; 4.165in. Bore; 18/23 Degree Head; Round Bore; With Steam Holes

• The embossed outer layers of the gaskets meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes
• The center or shim layer is an uncoated stainless steel layer which can be varied to accommodate multiple thickness requirements
• Requires less clamp load creating less bore distortion
• Conforms load distribution across the sealing area
• Embossed Outer Layers Coated w/Viton

Brief Description: The Cometic Gasket cgsC5248-051 MLS cylinder head gasket is designed for Chevrolet Gen-1 Small Block V8 applications with a 4.165-inch bore, 18/23-degree heads, round bore, and all steam holes. Its multi-layer stainless steel construction and Viton-coated outer layers provide sealing performance for high-output engines without requiring sealants.

Key Features & Performance Benefits:

• Multi-layer stainless steel construction: Provides increased strength, rebound capability, and corrosion resistance.
• Viton-coated embossed outer layers: Designed to handle harsh sealing environments, load conditions, and surface finishes; the Viton coating is heat resistant to 482°F.
• Reduced clamp-load requirement: Helps create less bore distortion during operation.
• Conforming load distribution: Distributes sealing loads across the sealing area for consistent gasket performance.

Key Product Specifications & Technical Data:

• Brand: Cometic Gasket
• Part number: cgsC5248-051
• Application: Chevrolet Gen-1 Small Block V8
• Gasket type: MLS cylinder head gasket
• Compressed operating thickness: 0.051 inch
• Bore size: 4.165 inches
• Head configuration: 18/23-degree head
• Bore and cooling passage design: Round bore with steam holes

What's Included in the Box: One Cometic Gasket MLS cylinder head gasket.

Fitment: Chevrolet Gen-1 Small Block V8 applications matching the specified 4.165-inch bore, 18/23-degree head, round-bore, and steam-hole configuration.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1