Editing Single overhead camshaft
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The SOHC design has less reciprocating mass than a comparable [[pushrod]] design. This allows for higher engine speeds, which in turn will increase power output for a given torque. The cam operates the [[valve]]s directly or through a [[rocker arm]], as opposed to overhead valve [[pushrod]] engines which have tappets, long pushrods, and [[rocker arm]]s to transfer the movement of the lobes on the camshaft in the engine block to the valves in the cylinder head. | The SOHC design has less reciprocating mass than a comparable [[pushrod]] design. This allows for higher engine speeds, which in turn will increase power output for a given torque. The cam operates the [[valve]]s directly or through a [[rocker arm]], as opposed to overhead valve [[pushrod]] engines which have tappets, long pushrods, and [[rocker arm]]s to transfer the movement of the lobes on the camshaft in the engine block to the valves in the cylinder head. | ||
SOHC designs offer reduced complexity compared to pushrod designs when used for multi-valve heads in which each cylinder has more than two valves. Of all | SOHC designs offer reduced complexity compared to pushrod designs when used for multi-valve heads in which each cylinder has more than two valves. Of all valvetrain systems, this is the least complex configuration possible. | ||
==See Also== | ==See Also== | ||