I have all I need to do just one bad cylinder on the block I have that's already been bored .030" over. Evendently the prior engine builder didn't torque the heads enough and water got in this "remanufactured" long block , one cyl got toasted. So I ask you, do take it to the machine shop and get all done over again OR just fix that one cyl. to .040" over ? by slandering an old 4" piston with valve lapping compound to start with. Then use a magnetic drill with a heavy duty honeing head and adjustable expanding stone set. Then when it reaches the .040" over mark finish it up with the Lisle 15000 honeing tool ?