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Mercury flathead identification?

Discussion in 'The Hokey Ass Message Board' started by Swiss50chevy, Oct 19, 2014.

  1. Swiss50chevy
    Joined: Apr 30, 2009
    Posts: 561


    Anyone know anything about mercury flatheads with EAC cast into the heads???? ImageUploadedByH.A.M.B.1413743780.299584.jpg

    Keep it vintage....
  2. RICK R 44
    Joined: Dec 13, 2009
    Posts: 457

    RICK R 44

    E A C on heads indicate 52 or 53 Mercury. If all parts are original it would be 255.6 cu in, 7.2:1 comp ratio and rated at 125 h.p.
  3. Apparently Rick R 44 knows.
  4. Bruce Lancaster
    Joined: Oct 9, 2001
    Posts: 21,682

    Bruce Lancaster
    Member Emeritus

    Correct, BUT everthing Ford and merc interchanges easily and these engines have been worked on for 60 years now, so do NOT assume that anything but the head is '52 Merc! It might be, or it might be a very different mixture of stuff inside. If buying it as a Merc, at very least verify the stroke, which is the $ difference between a Ford and a Merc.
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