A real 1968 L79 327. Bore is standard, crank is standard. I tore this engine down and found it to be very clean inside and as stated the bore has no ridge and he crank was perfect. Even the bearings had no wear. So i re***embled it with the original bearings and only had to buy a set of lifters, as there was one missing. Ill try to post pics but keeps telling me pics are to big. So perhaps pics to your cell.