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valve-in-head engine

(valv′in hed′)

a type of internal-combustion engine, as in many automobiles, having the intake and exhaust valves in the cylinder head instead of the block

See valve-in-head engine in American Heritage Dictionary 4

noun

An internal-combustion engine, as in some automobiles, that has the inlet and exhaust valves in the cylinder head instead of in the engine block.

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