Hello,
I found out today the 390 in my boat has a cracked block in the #1 cylinder. I took it to the shop and they are going to sleeve it. I don't want to get another block because this one had some serious oil passage work by Kuntz and Craft back in the day. We checked the wear and it is only 5 thousandths in the other cylinders.

Should I bore it to .030 or not? I have gotten several opinions but nothing defining. I would rather not bore it to keep the costs down but will do what is best.

Thanks, TR