Cometic C9689-075 MLS Head Gasket Set Harley Evolution Bore Thick - 3.500 075 2-Pack

The Cometic C9689-075 Multi-Layer Steel (MLS) head gasket set is engineered specifically for Harley-Davidson Evolution engines with stock 3.500-inch bore. This premium gasket kit includes two MLS-5 head gaskets featuring Cometic's advanced five-layer construction for superior sealing and durability.

Key Features:

• MLS-5 construction with five layers of stainless steel for maximum strength and reliability
• 0.075-inch compressed thickness optimized for stock compression ratios
• 3.500-inch bore diameter designed for stock Evolution cylinders
• Includes two head gaskets for complete engine rebuild
• Precision-cut with advanced folding and stamping technology
• Enhanced combustion seal with superior rebound characteristics
• Resists corrosion, warping, and extreme temperature cycling

Cometic Multi-Layer Steel gaskets utilize multiple layers of stainless steel with proprietary coatings to create an optimal seal between the cylinder head and engine block. The gaskets conform to surface imperfections while maintaining consistent clamping pressure across the entire sealing surface. Ideal for stock rebuilds, performance applications, and high-compression builds on Harley-Davidson Evolution Big Twin engines.