Heating the pipe wouldn't help. It would just make it tighter.
If it was mine, I'd get a smaller pipe and weld it to it, then unscrew it. Then no threads are damaged. That block is rare, I wouldn't do anything to it to risk damaging the threads.... if it leaks with a new pipe your screwed. If you don't have a welder, I'd take it to someone who does.
If you cut it into 4 pieces with a hacksaw that might work...... just don't damage threads in the block. After cutting the pipe stop and try to break it with a hammer and punch.
|