Anyone ever have a freeze plug pop out??

So jacked it up and had a look. Its the one that doubles as the block heater at one time, seems to me whoever rebuilt the engine re used it and used new sealant because it half blown out and there is a ton of sealant that is for sure not from '74.

Anyway, lesson learned on a huge oversight on my part.

The Schumachers come out easy enough so I will be able to get it with engine in.

Something new to learn this week.