I believe someone in this club once suggested to me to heat an aluminum skeg to about 600 degrees. Since I have a temp gun, I did this to a Merc 200, auto transmission skeg, with a propane torch. It was bent out of line by as much as an inch at the bottom. I have no doubt this would have snapped off without heat, but it hammered back perfectly. Your results may vary…..
Long live American manufacturing!