Cometic C8642 MLS Head Gasket Bore - 83mm 030 Inch

The Cometic C8642 is a Multi-Layer Steel (MLS) head gasket engineered for high-performance applications requiring superior sealing performance. Featuring an 83mm bore diameter and a compressed operating thickness of .030 inches (0.76mm), this gasket is designed to provide maximum sealing performance for high-output engines without requiring additional sealants.

Key Features:

• MLS construction with multiple embossed layers of stainless steel for increased strength and rebound capability
• 83mm bore diameter with .030 inch compressed thickness
• Outer layers coated with Viton fluoroelastomer rubber, heat resistant to 250°C (482°F)
• Embossed design promotes even clamp load and reduces bore distortion
• No re-torquing required after installation
• Corrosion-resistant stainless steel construction
• Ideal for aluminum-to-aluminum and aluminum-to-cast iron block applications

Cometic MLS gaskets utilize Load Control Embossments (LCE) to distribute torque load evenly across the sealing surface, minimizing bore distortion and improving piston ring seal. The Viton coating on both sides of the outer layers meets the demands of harsh sealing environments and varying surface finishes, while the center uncoated stainless steel layer can be customized for specific thickness requirements. No additional sealants are required for installation.