but the answer is yes, I recently picked up a 65 Dart and it came with a '77 model 318. When I moved the block to drop it off at the machinist, I noticed the IH casting identifier...kinda sad though, I couldn't use it at 030 overbore...would probably clean up at 060, but there are some pronounced gouging/marks at the top of the bores that kinda look like someone got a little careless when they did the initial machining.
