Pushrods are used in engines with overhead valve (OHV) designs. The camshaft in the engine block pushes up on the lifters and then on the pushrods, which then push the rocker arms, which then open the valves.
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Pushrods are used in engines with overhead valve (OHV) designs. The camshaft in the engine block pushes up on the lifters and then on the pushrods, which then push the rocker arms, which then open the valves.