fast in line and curves

im not sure but i think that the v6 sway bars are smaller than the v8 sway bars. if thats the case would i upgrade the rear to aleast a stock v8 sway bar and upgrade the front to a larger than a stock v8 ? as far as wheels im gonna try to find someone to trade me the wheels i have for a set of 16’s that are all the same size or just buy a set if i have to.