Cometic C8453 Copper Base Gasket for Engines - 020 750/900cc

The Cometic C8453 is a precision-engineered .020" thick copper base gasket designed for 750cc and 900cc engines. This high-performance gasket is commonly used in powersports applications including motorcycles and personal watercraft.

Key Features:

• Solid copper construction for superior heat dissipation and sealing under extreme conditions
• .020" compressed thickness allows precise adjustment of cylinder deck height
• Engineered for high-performance and racing applications where compression ratio tuning is critical
• Excellent conformability to mating surfaces for reliable sealing
• Designed to withstand high cylinder pressures and temperatures

Cometic copper base gaskets are a popular choice among engine builders for their ability to simplify setup when building performance engines. The controlled thickness allows tuning of the piston-to-head squish area, which is essential for optimizing combustion efficiency and power output in modified engines.