Is it possible to sleeve back to 4.310 from 4.53 ?
From the list above, could csl2259 work ? OD 4.5655 1/8. 6 3/4
What if you bored block to 4.564 and left a half inch
at the bottom 4.53. Then machine the outside half inch bottom of sleeve
to 4.531 You’d have a .017 step, 1/2 inch from the bottom of the cylinder on the back side of sleeve.
Install and Finish bore to 4.31
Is the tiny step enough ?