I took my head to the machine shop to get redone come to find out it was cracked. So i got a different head it checked out ok, but chuck the machinest said my rotators are shot and i need some new keepers. He cant find any and ive not had any luck. He also said I dont really need the rotators i could use the same as the intake valuves take witch dont rotate. Chuck said the rotators were used because of the lead gas back in the day to keep the valuves clean and now i dont need them. I know i can get the keepers from saeli empliment so does anyone know where i could find the other parts or something that would cross over to work? Thanks