Greetings, I have a 1947 Chevy fleetline with a 216 whose babbited bearings went out on it. I found a 1958 235 in good running order, haven't purchased yet. My question is, is there any compatibility problem? The only thing I can think of is the engine mounts might be a little different. Is it difficult to change them, will welding be necessary? Anything else I should be aware of? Thanks beforehand for any help you can give.