Founded in 2001 as the first manufacturer of aftermarket, performance billet camshafts for the dirt bike and ATV market. Today Hot Cams manufacturers almost 250 unique camshaft profiles in its Urbandale, Iowa facility. Titanium or steel replacement valves. Forged one-piece O.E.M. replacement valves. Precision-machined valve head and seat surfaces. Nitride-coated. Induction hardened valve stem tip. Precision polished surface. Compatible with O.E.M. valve keepers. Note: Steel intake valve.