[lineslinger]

Dean,
We took a 68' 427SO block that was bored .060 over and sleeved all eight cylinders. Once all tolerances were double checked liquid nitrogen was used to reduce the sleeve size and then they were pressed in and allowed to season, (heat and cold) for a couple of weeks. With the sleeve inserts taking it back to original bore size, we took it out to .015 and built the engine from there.
A sleeved block, if properly prepped and assembled, will offer longevity and stability, and eliminate the anxiety over skinny cylinder walls.
Ask George Anderson@Gessford, he didn't work on my engine but he was generous enough to offer some insight when asked.

Mark