Yes point taken, but 65-70 years ago was a pretty long time ago. The Flattys were in better condition then.PackardV8 wrote: ↑Thu Mar 18, 2021 12:11 pmEasy to make boost on any breathing limited engine. The inherent weakness in the Ford V8 flathead is heat rejection. The long transverse exhaust passages transfer too much heat to the coolant, but still can't keep the valve seat area cool enough. These days, at least half the flathead blocks we mag have too many or too severe cracks to be used.MichaelThompson wrote: ↑Wed Mar 17, 2021 5:48 pmI don’t know, I think a good Flathead would hold up to 4-6 PSI pretty well. Probably break a trans or axle before the motor went.
I agree about the transverse exhaust port boxes are a liability but they seemed to work pretty good in spite of their shortcomings.
I don’t know what it is about a Flathead Ford V8’s but to me they seem to be greater than the sum of their parts.