Cometic C9690-042 MLS Head Gasket 3.670" Bore Harley EVO .042" Thickness

The Cometic C9690-042 is a high-performance Multi-Layer Steel (MLS) head gasket designed specifically for Harley-Davidson Evolution motors. This premium gasket features a 3.670-inch bore diameter and an ultra-thin .042-inch compressed thickness, making it ideal for high-compression builds and performance applications.

Key Features:

• 3-layer Multi-Layer Steel (MLS) construction for superior sealing and durability
• 3.670-inch (3 5/8-inch) bore diameter for precise fitment
• .042-inch compressed thickness allows for increased compression ratios
• Heavy-duty stainless steel construction resists corrosion and withstands extreme temperatures
• Engineered specifically for Harley-Davidson Evolution engines
• Provides excellent sealing under high cylinder pressures
• Reusable design reduces long-term maintenance costs

Cometic gaskets are manufactured using advanced materials and precision manufacturing processes to ensure consistent quality and reliable performance. The MLS design features multiple layers of stainless steel with specialized coatings that conform to irregular sealing surfaces while maintaining superior torque retention and resistance to blowout.