These are preowned  Celdyne  intake valves made from titanium and there are eight (8) valves being sold for one (1) money.  The valves measure 7mm. at stem thickness,  with a head size measuring close to 2.183" and  these valves have a slight concave valve face with a length of 5.733".  These are vintage  intake  valves and were used In early  in 2008 and were used for 333  miles. . These valves have a selling code of DW 55. Please note the following:  There is no valve box for these valves but they will be individually wrapped and shipped in a generic type box.  We appreciate your interest in our store and hope we can do business together. Thanks for looking! Please add us to your favorites.  These are older vintage valves.¹was