New head, rebuilt, what? It's a pressed in plug that works itself out of 2F and 3F/E motors over time. Get a tap and die set, pull that head bolt, tap the oil galley plug bore, stick some allen plugs in there with some loctite and reassemble, you're done.
So I dove in yesterday, after reading, and re-reading tons of posts on here. I will share my successful method, and add it to the pile:
It was time to adjust my valves, so I figured since I was in up to my elbows, why not fix the galley plug, too?
Total time was about 2.5 hours. That included removing a steel heater pipe against the firewall for drill clearance (and draining the radiator so as to not make a mess).
Everything went well, and I'm glad I did this! I feel way more confident about driving around in my truck after I pulled out the tiny, weeping, oil galley plug.
I had...