I have a 1969 302 that I acquired in 1975. CE# was decked off years ago, this thread got me interested so I checked it out today. The pad under the starter is stamped 01 9V, block was cast A179. I noticed up front on the right side lower pad in front of the fuel pump it is stamped Z and 5 in what appears to be the same font as under the block., not together they in different spots. Probably not anything, but I thought it was strange.