not trying to say your buddy's wrong, his is probably the safest way, but according to the dimensions on the Ford Racing crate motor, the only size differences between a 4.6 and a 460 is that the big block is 4 inches longer, and will be slightly taller depending on what air cleaner you use. This sounds to me like it will take little more than a slight firewall reshaping, some motor mounts, and maybe a cowl hood. I could be wrong though I still have a bit more measuring to do. BTW, right now I'm only trying to see if the motor will fit at all. Once that is established then I'll start planning out electrical and drivetrain.
