The valvetrain is a key part of an internal combustion engine that controls the operation of the intake and exhaust valves. It includes components like the camshaft, lifters, pushrods, rocker arms, and valves. These parts work together to ensure precise valve timing, allowing air-fuel mixture in and exhaust gases out. Proper function is vital for engine performance, efficiency, and longevity. Website: https://www.chooryn.com/