I was under the impression that the 2007 GT 500 was a 4v 5.4L. Of course you can get an intake plate for the swap but I agree with Sparta, there are a lot of differences in these two engines. 3v 4.6L vs. the 5.4L. Make sure you do your homework before you get bogged down in expensive fabrication cost and realize that there a ton of supporting mods you will need to keep your 4.6L alive with that supercharger.