Cylinder Heads - Usually Called The Top End Of The Engine
Cylinder Heads – Usually Called The Top End Of The Engine

A Cylinder head is usually located on the top of the engine block. Cylinder heads serves as a housing for components such as, Intake and exhaust valves,  Camshafts, Valve Springs And Lifters.

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The passages in the cylinder head allow air and fuel to flow inside the cylinder while permitting the exhaust gases to flow out of it. The cylinder head also channels the coolant into the engine block, thereby cooling down the engine components. Finally, The cylinder head uses a gasket that aids in preventing water or oil from leaking into the combustion chambers.

Most OEM (original equipment manufacturer) cylinder heads are made out of cast-iron. As a result, A cylinder head made of cast-iron is more durable and less expensive. However, cast-iron is heavy and provides a lesser efficiency in dissipating heat. For this reason, some manufacturers prefer using cylinder head made of aluminum. These cylinder head are much lighter than cast-iron cylinder heads. Therefore, Performance cars and race cars commonly have aluminum cylinder heads.