is it possible to bore a 440 to a 600 ir is a 500 the largest you can go?

I believe a 500 is as far as you can go. I wouldnt want to bore that much more than that anyways. Any internal engine problems that could be fixed normally by boaring out, you wouldnt be able to. Something to keep in mind. You might want to find yourself a used 600 block or something. My 2cents