Cometic C8653 MLS Head Gasket 101mm Bore .066" Victory Motorcycle Pair

The Cometic C8653 is a high-performance Multi-Layer Steel (MLS) head gasket pair engineered specifically for Victory motorcycles with 101mm bore engines (817cc). These gaskets feature a compressed thickness of 0.066 inches, making them ideal for performance applications requiring precise compression control.

Multi-Layer Steel Construction:

Cometic's MLS technology utilizes multiple layers of stainless spring steel with embossed outer layers coated in Viton rubber. This advanced design provides superior sealing performance by conforming to head and block surfaces while withstanding extreme combustion pressures and temperatures. The spring steel construction allows the gasket to absorb engine movement and maintain seal integrity under demanding conditions.

Key Features:

• 101mm (3.98 inch) bore diameter for 817cc Victory V-twin engines
• 0.066 inch compressed thickness for proper compression ratio
• Multi-layer stainless steel construction with Viton rubber coating
• Load-controlled embossments for optimal seal distribution
• No sealants required - gaskets install dry
• Excellent rebound characteristics and corrosion resistance
• Sold as a pair for both cylinders

Installation Requirements:

MLS head gaskets require properly prepared surfaces with a 50 RA (roughness average) or smoother finish for optimal sealing. Both head and block surfaces must be smooth, flat, and true. These gaskets are designed to install dry without additional sealants, as they feature Cometic's proprietary high-temperature coating. Proper torque specifications must be followed according to fastener manufacturer recommendations.

Cometic Gasket has earned a reputation for developing some of the highest performing gaskets in the powersports industry, with proven reliability under the most demanding racing and performance conditions.