What to do....what to do?

if your plans are to build another engine, i would just reseal the 318 and put it back in. and finish the season. just find your convertor bolt problem. sounds like this isnt the first time they have came loose. check the threads real close to make sure there not stretched or just plain wore out. maybe have the pads replaced for 7/16 bolts and lock-tite them in. you may be able to save your flexplate that way. good luck in your points hunt.