Mr. Maine, IF I could still get them, yes, they would cost $2,000 at my retail markup. If, however, anyone with a Merc account could buy them at my cost, you could get them cheaper. It's academic since they are NLA, though, I suppose. I honestly don't know if the '87 tips were smaller because our computer bill of materials records do not go back before the 1988 model year, but I would say it's possible. It would be a fairly simple job to enlarge the holes to fit the bigger tips if so.

BD, thanks for the response. Yes I think I could put the bigger tips from the 272 into the 311 quite easily, but it would be harder to put the smaller 311 tips in the larger cutouts of the 272 platform.

The reason is, I want to pipe from the transom to the tip to make "thru-thunder" having a true thru-hull exhaust. It would be much easier to fab up an adapter to go from 4 inch stainless pipe to the larger stainless tips than it would be to go to the smaller ones.