No longer a custom order piece, pushrods with a 0.165? wall thickness are now available. These extremely durable 7/16? diameter pushrods are double tapered and capped with 5/16? semi-spherical ball ends machined to 210? to ensure ample clearance. Made from chrome moly tubes and case-hardened to Rockwell Rc60 through multiple heat treatments, these heavy duty pushrods are for t hose racers who are going to extremes and are popular with Late Model dirt and drag racers