This is a flathead of sorts but not truly a Ford flathead. The reason I'm saying that is if you look at the exhaust arrangement relative to the spark plug layout you will see what I'm talking about. The center and end ports seem to come from between the spark plug but yet the front port is out beyond the front cylinder. It looks like he ran the exhaust runners straight down from the the valve chamber and maybe siamesed 2 of them with the others being single runners. From my layouts and figuring it's one of the only ways that it could have been accomplished. It does make a nice looking representation of the Ford flathead though.
gbritnell