From what I know of shock construction it should be fine but I have never done it.
I just looked at some pics of the GTR1400 shock and I see there is a shoulder between the 2 sides of the lower mount that is going to interfere.
Hopefully you can spin it around.
Otherwise, resell that shock on eBay and buy a ZZR1200 shock instead.
They don't have that shoulder between the mounts and only raise the rear by about ½".