To line2line coat or not to line2line coat ;-)

Cool, I think you have a good machinist. Machinists who are not obsessive/compulsive kinda scare me.

Have him hone it to whatever cleans up. Have him give you the number, send pistons to L2L to have brought to that dimension, reassemble and rock and roll.

I have a 400 block at 4.402, because some butcher used a ridge reamer like an animal. The thinnest numbers I recall finding using the sonic tester was .12x on the perpendicular to crank axis. Which means nothing unless I send you this block. Worst case, you can sleeve a cylinder or two, or all of them if it comes down to that. S/F....Ken M