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Valvetrain Components & Parts
The engine's valve train mechanism is designed to open and close the intake and exhaust valves. Depending on the location of the camshaft in its rotation, the valves open and close via its lobe height. In a V8 engine, there are 16 valves total. Each cylinder head contains eight valves, four intake and four exhaust. While the valves are precisely timed by the camshaft, the lifters move the pushrods upward, the rocker arm tilts downward and moves the valve. JEGS offers these parts from top brands like Crane Cams, Comp Cams, Isky Racing Cams, JEGS, and more. View our wide selection of valvetrain components that will boost engine performance.