A lot of differences vn to vr v8 looms all go through passenger side hole near chassis rail where vs is the start of major changes like ecu plugs in passenger side but dash loom & other things plug in on driver's side like a vt etc.
There are other changes like number of pins to 4l60e also gearbox/ecu changes depending if t5 map based or getrag maf based.
Basically should not mix & match unless you like headaches unless done a ton of homework so you know what interchanges.