The 460 is a nice choice but you have to torch a bit of the front cross member for a low mount alternator setup and you need tofind a rear sump oil pan. Everything else is pretty straight forward and easy. The tranny will bolt to it. L&L makes a mount that works good and will not bust. Rebiuld cost is about the same, 460's have alot of aftermarket following now days so its a good choice that will alow you to grow into if you wish.