I'm always tempted by stuff like this when I see people talking about head swaps and other stuff you can interchange between the different 5.7/6.1/6.2/6.4 stuff, then I remember I have the early style 5.7 that is the oddball of the bunch so my intake and exhaust don't play nicely. I believe they will still physically bolt up, but the ports on them are different than all the other ones as far as I'm aware, and they are probably the two most expensive parts of my whole swap, lol. Would probably be easier to run a factory intake on any new heads anyway over my ModMan setup, but I do kind of like the carb style look I have with my 4 bbl throttle body setup.