Hey Hot Rod Todd, did you notice that the block you are asking about has the same exact assembly date as another you mentioned. A few days ago you were wondering about the Corvette Bronze 68' Z/28. It has VOIO3MO also. What are the odds, the same day. BUT, it has a VIN stamped on it and has never been decked. I have seen probably 50 of the early MO blocks and they ALL had a VIN stamped on them. Real curious what Jerry, and the guys are going to say.....Danny