Cometic C8225 Copper Head Gasket .043 Inch Thickness

The Cometic C8225 is a high-performance copper cylinder head gasket engineered with a compressed thickness of .043 inches. This gasket is constructed from fully annealed dead soft copper, providing superior conformability and sealing performance for high-compression and high-performance engine applications.

Key Features:

• Compressed thickness of .043 inches for precise compression control
• Fully annealed dead soft copper construction for optimal compression and sealing
• Excellent heat dissipation properties reduce the risk of head warping
• Designed for engines with o-ring combustion seals for extreme cylinder pressures
• Reusable up to four to five times when properly cleaned with solvent
• Superior resistance to blowouts in high-performance applications

Installation Notes:

• Requires o-rings and sealant for proper installation
• Recommended o-ring protrusion: .008 to .010 inches (no more than 25% of gasket thickness)
• Clean, flat surfaces are essential for proper sealing
• Re-torquing recommended after initial heat cycle
• No additional annealing required - gasket is ready to install

Cometic copper head gaskets are the preferred choice for street/strip engines, drag racing, and other high-performance applications where extreme cylinder pressures demand maximum sealing reliability. The copper material naturally conducts and distributes heat evenly, minimizing warping and ensuring a strong seal even on less-than-perfect surfaces.