overhead camshaft

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overhead camshaft

[′ō·vər‚hed ′kam‚shaft]
(mechanical engineering)
A camshaft mounted above the cylinder head.

overhead camshaft

overhead camshaft
The camshaft of an aircraft reciprocating engine, located above the cylinder head, which operates the valves directly without the aid of the push rods.
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References in periodicals archive ?
My test car was powered by a four-cylinder, 16 valve twincam petrol engine which can achieve more than 120mph and nearly 39mpg on the combined circuit.
The 36-inch Nitro incorporates these new design elements to produce a 6-inch brace height (6 [1/2] with the Maxis-Plus TwinCam), draw lengths of 25-30 inches (26-31 inches with the Twin-Cam), and peak draw weights of 60 and 70 pounds.
MG's 1958 MGA TwinCam was also popular with many officers.
More sophisticated than Brit rivals with twincam engine and Weber carbs.
Based on the layout of the midengined Esprit it differed in using a drysump version of the 2,174cc twincam engine installed in a backbone chassis frame with a different rear suspension layout.