What Are The Functions Of Gasket?
Prevent Leaks
The main function of a car gasket is to act as an insulator between the cylinder block and the cylinder head. The purpose of the insulation is to prevent oil leakage so that oil will not enter the radiator channel or vice versa. The presence of a car gasket prevents oil from seeping into the combustion chamber.
Car gaskets also function to maintain density and prevent leakage during the compression process. With the car gasket, the combustion chamber can be closed very tightly and this makes maximum compression possible in the combustion chamber.

Withstand Pressure
Another function of the gasket is to hold the pressure, so it doesn't spread from the cylinder head to the block gap. Basically, a car engine must have an engine block and have a cylinder head made on top.

Distribute Heat
Car gaskets also function as heat distributors from the cylinder block to the head block. The gasket used is typically metal packing. In general, this function is closely related to preventing leakage.