Cometic C9609-020 4.000" Bore Copper Head Gasket .020" Thick 2-Pack Harley EVO

The Cometic C9609-020 features 99.9% pure oxygen-free C110 copper construction that provides exceptional thermal conductivity and superior sealing performance for high-performance Harley-Davidson Evolution engines. These copper head gaskets are ideal for aluminum heads, aluminum blocks, and cast iron blocks.

Key Features:

• 4.000" bore diameter designed for S&S and TP cylinder applications
• .020" compressed thickness for precise deck height adjustment
• Corrosion resistance and high ductility prevent embrittlement when heated
• Creates the ability to rebound and resist corrosion
• Sold in packs of 2 for complete engine builds
• Made in the USA

Cometic gaskets are used by professionals in high-performance machines and as OE replacements worldwide. O-ringing is recommended for optimal sealing. These heavy-duty copper head gaskets are engineered for builders who demand maximum reliability and performance from their Evolution Big Twin engines.