It has the LX platform accessories. (charger, magnum, challenger) so it most likely isn't a truck version of the 5.7. The 6.1 and earlier 5.7 have different intake ports (04-09 model years) in late 2009 they tweaked the 5.7 for more power and people commonly refer to it as the " eagle" version. Is there a cast number on the xv intake? I would start there as it should tell you if you have 5.7 ports or 6.1 ports. And then you should know that the rest is.... Unless they swapped eagle heads onto it, but I doubt it.
Good luck!