What do all the stamps on my 360 mean?

its a 318. if it was a 360 there would be a 360 in that number POST A PIC LOL, the VIN number will be stamped above the side/ rear oil pan rail on the passenger side. post a pic of it. you may have to do some scraping to find it
the-318 is cubic inch and i believe the 23 following it is the date code but im not sure.