well, unless your SVT is a early 98 model, thats the way it came. They changed the capiper design for just the early 98 SVT's, after that they went back to the same calipers as non SVT's, just used a bracket to push them out over the larger rotors.
I doubt your rotors are wrong, you would definately notice the smaller rotor and nearly half if not more of the pad touching nothing but air!