Cometic C8139 Copper Base Gasket - 005 1157-1260cc

The Cometic C8139 is a high-performance copper base gasket designed for engines with displacement ranging from 1157cc to 1260cc. Manufactured from fully annealed dead soft copper at .005 inch thickness, this gasket provides superior sealing capability for high-performance and racing applications.

Key Features:

• .005 inch (0.005") thickness for precise cylinder deck height adjustment
• Fully annealed dead soft copper construction for excellent conformability
• Engineered for 1157cc to 1260cc engine displacements
• Compresses easily during installation for proper sealing
• Ideal for performance engines requiring precise piston-to-head squish area control
• Made in USA with American-sourced materials

Cometic copper base gaskets are utilized by professional engine builders to fine-tune compression ratios and achieve optimal performance. The dead soft copper material conforms to cylinder head and block surfaces, creating a reliable seal even under extreme pressure and temperature conditions found in racing and high-performance applications.