Ok was able to replace two of the freeze plugs on each side with engine in truck. Trying to avoid yanking it.

However, I do think there are some more squirrelly things with my motor mounts. As mentioned previously if I pull those washers out the engine won't move forward at all because the front ear is already hard against the motor mount.

So looking at this some more, do I have small block motor mounts rigged in here?