You've got me very curious about your motives for doing this swap. Don't get me wrong, I love engine swaps, but this one is fairly unusual. Is it that you need an engine and just happened to come across the 390 at that good price? What does the rest of the car look like? If it is nice, you are going to reduce the value of it drastically, most people will not understand the Ford in an Olds thing and maybe see it as the cheap way out.

Please don't misunderstand me, I am not being negative about your project, just curious. I would think an Olds into the Olds would be easier and keep it in the family. Years ago I helped a buddy swap a 455 Olds and turbo 400 into a similar '60 Olds convertible. It was a very straight forward swap and the biggest hassle was the exhaust manifold on the drivers side, but we solved that with some industrial type manifolds we scored somewhere. And 350-455 Olds engines are available everywhere pretty cheap............just a thought.

Don