Cometic Chevy Big Block Brodix Big Duke/Big Brodie Heads 4.63in Bore .027in MLS Head Gasket

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.027". Suitable for Brodix Big Duke/Brodie Head. 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 Mark-IV; GM Gen-V/VI Big Block V8 .027in. MLS Cylinder Head Gasket; 4.630in. Bore; For Aftermarket Heads-Undersized Water Ports to Allow for Customization

• 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

The Cometic Gasket Chevy Big Block Brodix Big Duke/Big Brodie Heads MLS Head Gasket is engineered for high-performance applications, providing a reliable seal under demanding conditions. Constructed from multiple embossed layers of stainless steel, the gasket features outer layers coated with Viton rubber, which offers exceptional heat resistance up to 482°F. The compressed operating thickness of 0.027 inches ensures proper fitment for aftermarket heads and allows for customization with undersized water ports. This gasket is designed to fit Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines with a 4.63-inch bore, making it ideal for enthusiasts seeking durability and precision in their engine builds. Its multi-layer steel (MLS) construction provides maximum sealing performance, especially suited for aluminum heads to aluminum or cast iron blocks, where shearing forces are a concern. The embossed outer layers meet the demands of harsh sealing environments, load conditions, and various surface finishes while the uncoated stainless steel shim layer can be varied to accommodate different thickness requirements. The gasket requires less clamp load, reducing bore distortion and ensuring even load distribution across the sealing surface, which enhances overall engine integrity. With no need for sealants, this MLS gasket simplifies installation and offers long-lasting performance in high-output engines with complex configurations.

Features:

• Embossed outer layers of stainless steel coated with Viton rubber for durability and heat resistance

• Uncoated stainless steel center/shim layer adjustable for multiple thickness options

• Requires less clamp load, reducing bore distortion and ensuring a tight seal

• Conforms load distribution across the sealing area for optimal performance

• Designed specifically for Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines with 4.63-inch bore