Sportsman Pushrods utilize a one-piece .080? wall body that is manufactured from 4130 chrome moly steel for an overall stronger and lighter pushrod. The chrome moly is heat treated to eliminate flexing, which in turn increases durability under the stress of high lift camshafts and high-rev valve springs. Lastly, the Sportsman Pushrods are black oxide treated to prevent corrosion, making them the perfect fit for street performance and mild race applications.