To Steve and others, I DO NOT have any 1927 info. I have a lot of manuals but have never come across one for my own truck. I have a contract for a 1930 Suburbanite (Hercules engine)with some spec's I will copy for you. I found that a lot of information I needed for the '27 was in a 1919 'Seagrave Motor Fire Apparatus Text Book'. It is hard to come by but was reprinted (400 books)in 1990 by Robert Marvin. The info on carbs, magnetos, etc are very similar. I can provide a set of copied pages for this book if you desire.