NOS 428CJ AND 428SCJ CAMSHAFT P/N C6OZ 6250 B.  IF YOU HAVE BEEN LOOKING FOR ONE OF THESE NEW, YOU HAVE BEEN LOOKING A LONG TIME.  I HAVE NOT SEEN ONE OF THESE CAMSHAFTS IN NOS CONDITION FOR YEARS.  I FOUND THIS ONE ON A SHELF WITH SOME OTHER PARTS THAT I PURCHASED 40 YEARS AGO FROM RUSTY ECK FORD, WICHITA KS. THE CAMSHAFT IS IN NEW, UNUSED CONDITION SHOWING NO SIGNS OF WEAR WHATSOEVER.  SHIPPED IN THE ORIGINAL FORD TUBE INSIDE A PADDED BOX FOR SECURITY.  ALL YOU GEARHEADS OUT THERE KNOW WHAT THIS IS.  THANK YOU!