A guy is trying to unload a used set of Milodon 429/460 4-bolt main caps on me. (I will buy almost anything usable at the right price, but I don't need junk.) I think I already know the answer to this question but for the record, have they any value other than a few pounds of scrap or as paperweights on someone's desk? I think with extra machine work (like machining down main cap tangs making the hole smaller and out-a-round ,then re-boring the centerline) then the caps might be reused. But the price of the required machine work to reuse use caps will cost WAY more than New name brand caps, therefore making these used caps junk. Researched this idea and found little info on it and thought some of you guys could clear this little disagreement up.