I just found this site and hoping someone can help and/or are interested. Long story short, my stepfather's family has a history of tractors and parts...he passed away and we are trying to get the rest to good homes. I recently took an F14 and F20 to Marshall Equipment for auction in April and have another F20 and mystery engine that I am going to take there in the next week. I would like these to NOT be scrapped and at least some of the parts be used...I am not the decision maker in the family. I admire those of you that have the ability and knowledge to rebuild these classic examples of our history. If anyone can help me identify the engine that would be great. It still seems to be in operating condition, but I can't seem to find any numbers on it except for the manifold and other parts. Thanks for your help.