Push Rods

In an Over-Head-Valve engine, you will find push rods connected between rocker arm and cam, which actuate engine inlet, and exhaust valves to aid with proper air-fuel and exhaust flows. If your vehicle’s engine is an old one, and an over head engine, then you can think about these push rods. In modern automotive designs, automakers are avoiding push rods, and they are placing cam shaft in the cylinder head to aid the valve timing.