The only things that can be swapped from the 3.5 Transverse from the 3.5 Longitudinal are simple parts like O2 sensors (not the same part numbers due to loom length, but the same actual O2 sensors if in a bind), 3 bar MAF (the 3 bar people use on the SHO to replace the 2 bar is originally the F150 part (F150 has 3 bar in both locations IIRC)). Other than that, as said above, nothing really swaps over. turbos are different, engine internals are different, the packaging is different, etc.