i am waiting on my 235/848 head to get done at the machine shop . so after inspection of the rocker assy. i discovered that i need to replace everything . my original 216 rockers/shafts are in very good condition and im considering installation on the 62 /235 .does this make any sense at all . can this damage the newly rebuilt head ? or am i just wasting time trying to save 2 or 3 hundred dollars ?