I'm working on rebuilding the powerhead on my brother's 85 Evinrude, 150hp. I've rebuilt a number of auto engines before, so it's not new to me.<br /><br />There are at least 3 cylinders that are bad (broken rings, somewhat scored) and I'll have to have them (probably all) bored out .020 or .030.<br /><br />Can a reputable machine shop bore and finish the cylinders or is there any special handling that needs to be done with these blocks?<br /><br />Mik