So I finally decided to pull that old four banger apart. I got it for free from a friend of mine because he said it was stuck. I've started disassembling it, and I truly believe that its only suffering from stuck valves. Sprayed everything that moved down in penetrating oil. Got all the valves unstuck (mostly). I was able to get the first spring off of a valve when it suddenly dawned on me that the base of this valve was not going to come up from the block. The base of this valve has a shape like the bottom of an hour glass. How in the hell do I get it out without busting anything?
Have you checked out the monthly banger meet? If you are having issues the guys over there are awesome to help.
https://www.jalopyjournal.com/forum/threads/june-2020-banger-meet-thread-so-four-so-good.1195616/ Here is a link to this month's meet.
I hope this picture helps. As stated before split valve guides. These tools will work fine. Gary in MN