772 is for a tall deck. I have one but it was mistakenly milled wrong and when it got corrected guess what. It now fits a short deck block.

I also have a 598 and a 420. The 420 is the baddest of them all as you can make it much larger inside.

Leon

Career best 8.02 @ 169 at 3050# and 10" tires small block power.