I was only there once - my Dad ran Modified Eliminator back in the day, and we took his 426 Hemi heads in one morning back in 78 I think it was for a valve job. I was only 14 at the time, but Jim let me face the valves after showing me how, was such a thrill at the time. I asked about the 340 block, because my Dad dropped by the shop later, and saw that it had no cylinders in it, was just one big oblong hole in each bank, Jim had said that it was one of Glidden's blocks.