Hey guys. First post here. I'm in the middle of rebuilding this old 250 and as I was starting to put the ancillaries on I noticed there's a crack that I believe is due to the torque on the head bolt right behind it. When I bought this engine I was told it was running when it was pulled out and I don't see any signs of any sort of leaks from this crack. Would you guys run it like this or do any sort of repair or just junk it?