In the head or overhead valve cylinder head, water jackets for cooling spark plug openings, valve and combustion chamber pockets as well as supports for valves and valve-operating mechanism are also contained. Certain engines like overhead camshaft engines are provided bearing for supporting the camshaft and the rocker arm shafts. Although head is more complex than the L-head, yet most of the automotive engines have I-head type due to the greater opportunity provided by it for increasing compression ratios. Moreover water jackets for cooling are larger in I-heads than those of Head engines.
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Types of Cylinder Head
In the head or overhead valve cylinder head, water jackets for cooling spark plug openings, valve and combustion chamber pockets as well as supports for valves and valve-operating mechanism are also contained. Certain engines like overhead camshaft engines are provided bearing for supporting the camshaft and the rocker arm shafts. Although head is more complex than the L-head, yet most of the automotive engines have I-head type due to the greater opportunity provided by it for increasing compression ratios. Moreover water jackets for cooling are larger in I-heads than those of Head engines.
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