A cylinder head is a cast aluminum alloy or cast iron engine component fastened to the end of the cylinder block farthest from the crankshaft. A head gasket is the filler material placed between the cylinder block and cylinder head to seal the combustion chamber. Head gaskets are made from soft metals and graphite layered together. Head gaskets allow for even heat distribution between the cylinder block and cylinder head for efficient heat dissipation.
Figure 1- Cylinder Head