First question, would a 360 from a motorhome have any type of different casting number system than passenger cars? The block in this 72 Dodge Motorhome clearly says 360 on it but the number on the drivers side down by the starter doesnt match up with anything in my books, cant remember the whole number but it ends in 601. I believe this is probably a 76 block , On the passenge side towards the alternator it clearly says 5-11-76. Is that right would that be a date ? Anybody know anything about these numbers Neal Zimmerman, Eugene oregon -- http://www.fastmail.fm - One of many happy users: http://www.fastmail.fm/docs/quotes.html ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html. b7yoMz.