Cometic C8396 Copper Head Gasket - 043

The Cometic C8396 is a .043" thick copper head gasket engineered for high-performance and racing engine applications. Built from C110 oxygen-free copper — the purest grade available — this gasket delivers exceptional corrosion resistance, superior ductility, and high thermal conductivity without risk of embrittlement under heat.

Cometic manufactures this gasket using 99.9% pure copper that is tested for uniform flatness, ensuring a reliable, leak-free seal between the cylinder head and engine block. The soft, conformable nature of copper makes it an ideal choice for engines equipped with o-ring setups, custom bore sizes, or heavily modified cylinder heads where traditional multi-layer steel gaskets may not be suitable.

Key Features:

• .043" compressed thickness for precise compression ratio tuning
• Constructed from C110 oxygen-free, 99.9% pure copper
• Excellent corrosion resistance and thermal conductivity
• Will not become brittle when exposed to high heat cycles
• Ideal for use with o-ring cylinder head and block setups
• Tested for uniform flatness for consistent, even sealing
• Suited for high-performance and racing applications

Cometic Gasket is an industry leader in precision-manufactured gaskets for powersports, automotive, and motorsports applications. The C8396 copper head gasket reflects their commitment to using premium materials and tight manufacturing tolerances to meet the demands of serious engine builders.