A: Depends what year you are after. IIRC, the late 343 and early 360 heads were the same. (there is a set of '72 360 heads posted for $50 on the snort4x4 board that came off a running but oil burning 360. I posted the link a few minutes ago) From: Brian Nelson Architect <bonarch@xxxxxxx> Subject: Head casting #'s for AMC 360? To: mail@xxxxxxxxxxxx Message-id: <000b01c4f437$ee861600$0300a8c0@fryzilrp32kezfx> Anyone out there able to direct me to where I can find these? I have sourced a pair (quite remote from me) and the wrecker needs some casting #'s to be sure that they are in fact AMC 360's, as they have been in his inventory for a long time and could possibly be mis-tagged. B. Nelson '69 Javelin 343 about to get 360 heads