a valve actuation device may comprise a camshaft including first and second cams , the second cam having a larger lobe than the first cam . a valve lever includes a first follower component or surface adapted to follow the first cam and a second follower component or surface adapted to follow the second cam . the second follower component or surface may be mounted on or defined by an eccentrically - disposed device , which is rotatable relative to the first follower component or surface . when the rotatability of the second follower component or surface is locked by a latching device , the second follower surface translates the contour of the second cam into actuation of an engine valve and , when the second follower component or surface is freely rotatable , the first follower surface translates the contour of the first cam into actuation of the engine valve .