Most machinists bore any cylinder to the diameter of the piston that's going into the hole, and put the skirt clearance in with a hone to eliminate the machining marks. The finish bore would end up 3 9/16" for a 235 Std. piston, with about .0025-.003" skirt clearance- - - -3.0625" final diameter, with the clearance built into the piston skirt. To do it accurately most good machinists insist on having the pistons on hand before they start whittling on the block, and fit each piston individually.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!