16 NEW 2.065 AND 1.72 BBC STAINLESS VALVES. LENGTH IS 5.217 INTAKE AND 5.354 EXHAUST    STEM SIZE IS .3719 OR 3/8    I HAVE BEEN USING THESE VALVES IN MY MACHINE SHOP FOR YEARS AND HAD GREAT RESULTS.   NOT A SINGLE FAILURE THAT I KNOW OF.    THESE ARE STANDARD LENGTH AND 3/8" STEMS.   ALSO THEY ARE A 1 PIECE VALVE--------------------- FREE SHIPPING ---------------------------   PERSONALNOTE:    I NOW HAVE THE VALVES BACK IN STOCK   THE STORMS AND POWER OUTAGES OVER THE COUNTRY REALLY SCREWED ME OVER    LOOK AT MY FEED BACK BEFORE THE STORMS