1969 Ford F-250 Broken Water Jacket

Engine Mechanical problem
1969 Ford F250 V8 Two Wheel Drive Automatic xxxx miles

Ok, so here's the deal. My truck (1969 Ford F-250 3.9L) needed a new water pump. Unfortunately, in the process of removing and installing the new one a piece of press fit piping broke and while trying to remove the extra, is now completely broken. So I have a piece of tubing that was at one point press-fit into the engine-block that should attach via rubber tubing to the water pump. It is now broken. What should I do? Should I heat the block and hope that the piece will simply fall-out, or should I try to drill? I've sort of half-assed both attempts, the heat with a propane torch and the drill with a drill bit that is too small really, but here are my concerns. One, that while drilling I over-bore the hole and can't get whatever piece back in there (which, in-turn raises the question of how I should go about getting a new piece and what to do about securing it) and Two, heating the block and not damaging other components. I'm really in a bind here and any help at all would be greatly appreciated.

Thanks.