So I have a 1965 coupe de ville, the motor has a knock because it ran out of oil.
I was told it's an Oldsmobile motor, not sure which one exactly, that was swapped in at some point. (i asked why too)
I have a Buick 430 motor with a TH400 transmission out of a '68 Electra 225.
I want to know if the Buick motor would fit without any major adjustments, and if it would be better than the olds one? Also which transmission should I use, again I'm not sure which one is in the Cadillac, I think it's original.