Yes, the SuperVoyagers can tilt to 6º, but the Voyagers can't.
That's always seemed a bit odd to me, and I can see no logical reason why the Voyagers dont tilt, when the SuperVoyagers do :?
Vast expense to kit them out to tilting specification.
The reason for only the Supers tilting is that the only EPS routes that XC ran on when the Voyager family was ordered were Glasgow - Brum down the WCML and Manchester - Stoke - Birmingham. Because the tilting kit is heavy and expensive, it didn't make sense to kit out every new train with it.
XC have removed the tilting kit from their SVs because they simply didn't need it anymore, the only EPS running being Manchester - Brum.
Personally, I think they should be given the WCML Brum - Scotland runs anyway, and give Virgin back the 4 4-car SVs to do their North Wales services with!