Thanks for the responses. I will not be able to verify the year until I get the engine later this week. Still assuming it IS a '72, is it a good candidate for a build up (can I get it to perform as well as the earlier 429s) or should I sell it and make a profit? The price of the engine was $150.00. I already know of two people who want the engine that would probably take it for at least $250.00.