I haven't had a lot of luck with my local machine shop, so today we'll look at installing bronze valve guides in a cast iron head without using any machine tools. I'll be using a no-longer-made Lisle 59000 Guide Replacement Tool set from 1978 that I borrowed from Dr. Torque.
Dr Torque's usual haunt: https://www.youtube.com/c/MotorsandMischief