My 1978 Evinrude 115 recentaly blew rings on the starboard side causing some mild scratches in the cylinder. I got a good deal on 4 pistons off ebay, but when they arrived I discovered that 2 were actually .030 over pistons. Can I have the starboard side bored .030 over and use these. This would be nice as would also get rid of the scratches but I'm concerned about a potential weight imbalance due to having two different piston sizes.
