340 stock, Not modified. Dated 2/8/72. p/n 2780930-340-5. Engine ran 15 years ago and has never been apart since I have owned it. I had it since 2004. I bought it from a guy who took it out of a 1973 Plymouth Duster 4 spd. I have other parts for sale as well. Let me know what you need for your E body mopar.