OK, not technically a hot rod, but I have a 540 BBC in my airboat. We were out yesterday and when my buddy started the boat to pull up to shore to pick us up there was a terrible knocking noise. We deduced that the nut came off the top of the carburetor stud and then the stud broke and fell through the throttle body and into the #5 cylinder.
Fast forward to this morning, took the spark plug out and fished the broken pieces of the stud out with a flex magnet and put it all back together. Started the motor and there is a knocking noise. Doesn't sound like a constant rod knock (not sure why the bearing would go anyway? Anyone care to diagnose my bad luck?