I am looking to ID a cam in a RH case , later I think (TO608). I can not see 9891 but just a CWC . There are no marks on either end .Would this be a 304 cam? or should I split it and put a new one in to be sure. Lifters look like new , so I hope to just assemble it. Owner would like a new 304 and lifters in it if not already there . Regards, Tim Colson