Thank you very much for the reply. With the cylinders in hand and the program I already have, I can output plotter files that when printed result in blanks for rolling the cones, tacking them to fit, welding, etc. I was hoping to avoid all that and buy a pipe set. given what I experienced today, the pipes will be the least of my worries. I now have much bigger fish to fry, like a generator that's toasty. I may revisit this issue once other, more pressing issues are addressed, but right now too may other parts of the engine are shot.