The springs largely are the same size, just the V-10 and diesel are slightly thicker and stiffer. But then again, so are many aftermarket gas springs.
Some people say V10/diesel springs make the ride a bit too stiff in the front, others say it rides amazing and handles heavier tires better. Largely how it handles is going to ride on the shocks you use. I put the heavier duty springs on my truck when I replaced my rear leafs. It lifted the front about an inch or an inch and a half, I didn't measure. But you do notice a slight increase in height. Its not a lift though, you could get the same change in height by dropping tire pressure by 20psi.