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original engine?

Discussion in 'Flat Fender Tech' started by jeep2003, Mar 13, 2008.

  1. jeep2003

    jeep2003 Well-Known Member

    Iv always wonderd if my engine was original in my 46 2a maby you guys can decode and find out for me? It was rebuilt probrobly in the 70s because when i tore it apart it was boored .02 over and i had it boored again to .04 over. The numbers on the head are GPW 6050 2C and theres an f script. The block numbers down on the passenger side by the oil pan read 641087-L-W-12-A-N1-CR-N2. So if it is the original its a leftover from the military ones. Thanks alot :)- Bryan
     
    jeep2003, Mar 13, 2008
    #1
  2. sammy

    sammy Coca-Cola?

    Not a leftover, nor a Willys, chances are, it's a GPW swap in. My 47 has an MB engine, S/N MBXXXXX
    My guess is the original flat head was seized or broken or cracked long ago, and at a government auction or surplus catalog,someone got this MB engine for cheap and bolted it to the CJ bell/ running engine.
    Quite possible what happened to yours but can't be positive.
    Maybe check the 2A forum, they like the history challenge.
     
    sammy, Mar 13, 2008
    #2
  3. Bill F

    Bill F Finally running

    Sammy your engine could be a left over. The GPW engine however is not
     
    Bill F, Mar 13, 2008
    #3
  4. CJ-X

    CJ-X Member

    "JEEP2003" Sounds like you have the right Willys block, at least the 641087 is right. It is a cj-2A engine. But somebody just swapped in a WWII Ford GPW head. Probably because the sparkplug holes had a problem. You could probably trade somebody looking for a gpw head even for your head.
     
    Last edited: Mar 13, 2008
    CJ-X, Mar 13, 2008
    #4
  5. 1963cj5

    1963cj5 Member

    I would swap you >>>>>>
     
    1963cj5, Mar 14, 2008
    #5
  6. jeep2003

    jeep2003 Well-Known Member

    That makes sence. Im not intrested in making it original as you can see my my avatar. And iv had it reconditioned and everything so its staying where its at. Thanks for the offer though

    Now an off topic question. Anybody know if selling firewall serial # plates is illegal on ebay? Do i have to list it as a data plate? Thanks again :)
     
    jeep2003, Mar 14, 2008
    #6