Block is already 4.560. RBRE will check for sleeve replacement. I know 1, maybe 2 sleeves are damaged. If all need replacement, I will resleeve it at 4.500. I have a set of Manley rods with .990" small end and 2.100" big end. I'm going to offset grind my Eagle crank as much as possible from 4.15 to hopefully 4.40. So the engine will end up anywhere from 560 to 575 cubes. I got the 7AL-2 on the cheap in real nice condition. I only need a launch limiter and high end limiter, so I don't need a lot of features anyway.