An "F" head engine has its Intake valves on top. (overhead valves), and the
Exhaust valves in-the-block, or "Side Valves. Bob Harris
From: <gimpineer@xxxxxxxx>
> Being just older than dirt, I was around when "Hardtops" were introduced.
> D^2 is correct. This was a new concept, at last for the major car
> makers.
> Previously only convertibles had an unobstructed window opening from
> front to rear.
> If I remember correctly, Willys Aero had the first one in 1952. Willys
> was the company
> famous for making Jeeps. They made a very nice small sedan in the 1950's
> with an "F"-
> head six engine. (Anyone out there, under 65, know what an F-head is?)
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