Cometic C9689-3570-040 HD Evolution Stock Bore 3.570" Head Gasket Set Stainless Steel .040" 2-Pack

The Cometic C9689-3570-040 is a premium MLS (Multi-Layer Steel) head gasket set designed specifically for Harley-Davidson Evolution engines with stock 3.570" bore. This high-performance gasket set features advanced stainless steel construction with a .040" compressed thickness, providing superior sealing and durability under extreme conditions.

Key Features:

• Stock bore size: 3.570" for HD Evolution engines
• Multi-Layer Steel (MLS) construction for maximum strength and heat resistance
• .040" compressed gasket thickness
• Stainless steel material resists corrosion and maintains integrity under high temperatures
• Includes 2 head gaskets (one pair for complete engine coverage)
• Precision-cut design ensures perfect fit and optimal compression sealing
• Ideal for performance builds, rebuilds, and high-compression applications

Cometic gaskets are engineered with proprietary materials and manufacturing processes that provide superior performance over traditional gaskets. The MLS design allows for engine movement and thermal expansion while maintaining a secure seal, making this gasket set an excellent choice for both street and performance applications.