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Technical Flathead ford cylinder head casting (Ford V8)

Discussion in 'Traditional Hot Rods' started by 1950mercsled, Mar 13, 2018.

  1. 1950mercsled
    Joined: Oct 10, 2013
    Posts: 62

    1950mercsled
    Member
    from oregon

    Have you guys ever come across a set of heads with this casting.
     

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  2. 42merc
    Joined: Dec 19, 2010
    Posts: 514

    42merc
    Member

    After-market. Carried by the parts houses back in the day.
     
  3. 1950mercsled
    Joined: Oct 10, 2013
    Posts: 62

    1950mercsled
    Member
    from oregon

    Does the FOR and FOS stand for anything and do you know what years they did these? Thanks
     
  4. 42merc
    Joined: Dec 19, 2010
    Posts: 514

    42merc
    Member

    The letters were probably the manufacturers ID#.
    I remember as a youngster there were stacks of these heads next to the back doors of a couple of parts houses I frequented. This was in the mid 50's, heads likely had been there for many years.
    Yours are likely a "fit all" head for '38 to '48. Looks like a casting date on your heads, but I can't make it out.
     
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  5. Atwater Mike
    Joined: May 31, 2002
    Posts: 8,678

    Atwater Mike
    ALLIANCE MEMBER

    I recall Santa Clara auto wreckers had some of these...they said they were 'Super heads', I was 12. Looking at the combustion chambers, I nearly compromised my future welcomes there, 'enlightening' them as to what they 'didn't have'. (I was a avid reader of HRM, recalled the great Don Francisco articles, "Building a flathead the RIGHT WAY". Don and Roger Huntington covered these areas (cyl heads, combustion chambers) in detail...)
    I did see some out at the old San Jose Speedway in '55-'56, on some 'also-rans', but the big guys had Canadian aluminum heads, Merv Furtado or Chris Seevers milled, filled, flycut...
     
  6. 1950mercsled
    Joined: Oct 10, 2013
    Posts: 62

    1950mercsled
    Member
    from oregon

    Are they worth running if they are cheap? I just don't want some badly cast head on my engine.
     
  7. 42merc
    Joined: Dec 19, 2010
    Posts: 514

    42merc
    Member

    They are/were just a replacement head. No advantage over a stock Ford head.
     

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