followed rustycowl69's advice and heated it up slow cooled as best I could and got the the tap to bite and completed the new threads for the helicoil insert. I tried cutting a helicoil down about 60% of the length, but I couldn't get it to insert and seat properly. Inserted a full helicoil and cut it off from the inside of the pan opening but it is still a little sloppy. Not satisfied with the threads on the original plug so I am going to buy a replacement tomorrow, snug it up, and add some oil to see if it holds. I thought about buying a replacement pan, but trying to keep as much original as I can, but starting to wonder if it is really worth it.
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