stock 273 commando engine question

With the engine out, a heel-bar,(aka; crow-foot pry-bar), makes short work of it.
The heel-bar has never let me down.Just push the top or bottom into the water jacket, and pry it out, using the opposite side. It has happened to me that the entire plug went into the jacket, no biggie, the heel bar popped it right back out.
I'm not a fan of using a cylinder wall as a pressure point for a screw.
I once saw a guy use a large Channel-loc plier instead of the heel-bar. That worked like a charm too.