From what I have gathered, a "head gasket" is an important part of the engine on most cars, but that is about it.
- What is a head gasket?
- Where is a head gasket?
- Why is it necessary?
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A head gasket is a piece of material which is located between the head and the block inside an engine. It is usually made of a material which is softer than the head and block to allow for sealing of imperfections between the two mating surfaces. It also seals ports which transfer oil or coolant between the two parts.
Here is a picture of a typical head gasket:
The head gasket has several jobs to perform:
As stated, the head gasket can be made of many different materials. There are several different types: