I have a 383 sbc and i just bought new rockers arms for it.They are the alum roller tips set up.I went to put them on and the bottom of the rocker hits the head were the stud goes.They are stock head.Does any think i need to do machine work on the head to make them clear or you think they are the wrong rockers?They are summit rockers (SUM-G6905)I know they say they should fit.But they don't.I will be calling them.But maybe some one can point me to the one's i should get or the best ones that fit.
Thanks ALL