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What transfers motion from the valve lifters to one end of the rocker arms in an overhead valve configuration?

Cam lobes

In an overhead valve configuration, motion is transferred from the valve lifters to one end of the rocker arms by the cam lobes. The cam lobes are designed to push against the pushrods, which in turn push against one end of the rocker arms, causing the valves to open and close at the appropriate timing within the engine. This camshaft mechanism is an essential part of the valve train system in an engine with overhead valves.

Valve guides and valve springs do not directly transfer motion from the valve lifters to the rocker arms in this configuration, so they are not the correct choices. Pushrods do play a role in the process, but they are not the components directly responsible for transferring motion from the valve lifters to the rocker arms in an overhead valve setup.

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Pushrods

Valve guides

Valve springs

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