273 build

The little 273 is all by itself. You can't bore it to 318 bore size. I have heard that the 273's had some core shift problems and can get too thin. If you're going to turbo one I would have it sonic checked to be sure. I bored mine .030 with out checking and have no issues but I'm not pressurizing it either. 2 turbos might be overkill. Your choice. tmm