By euro Bandit 1400, I assume you're talking about the GSX1400?
I've seen some comment on how this is just a bigger Bandit 1200, but looking at how different it apears, I'm not so sure there is a direct family relationship. I haven't heard of anyone swapping in a GSX14 crank into a B12, but I have heard of bandits with stroker cranks and big bore blocks reaching the 1500cc range.