I visited the Harrah collection in 1978 - just a few days after Bill Harrah's death as it happened - and they were collecting vehicles together for one of their regular sales. I remember one was a Stutz fire engine from the 1920s but I don't remember seeing under the hood. There was that much stuff to see (well over 1000 cars - I spent three days there) that many cars that you would normally spend some time looking at, at a small gathering, you just walked straight past to get to something even better.