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`67 GS400 Exhaust manifold casting #`s help!

Discussion in 'Street/strip 400/430/455' started by staged67gspwr, Nov 24, 2004.

  1. Bald Menace

    Bald Menace unauthorized user

    George
    my curiousity got the best of me so i drove out to the shop tonight and shot a couple pictures if the manifold. i think it raises more questions than it answers though. mine has the same casting number as yours but is different looking
     

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  2. Bald Menace

    Bald Menace unauthorized user

    casting number. mine is from a california car with the a.i.r injection heads
     

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  3. staged67gspwr

    staged67gspwr "The Black Widow"

    Hey thanks Bob you didnt have to go out there tonight,now i see the difference,very odd,it puzzles me like the casting # difference between manifolds used on `67 GS 400`s,mine has the 1377139-1 number which yours has the 1377139-2.

    Thanks
     
  4. Bald Menace

    Bald Menace unauthorized user

    George
    I wonder if maybe Buick didnt use the heat riser valve in warmer climate cars for areas such as arizona and florida and California. that would make sense as to why there are 2 variations of the same manifold and casting number.
     
  5. staged67gspwr

    staged67gspwr "The Black Widow"

    Yea you might be right it makes sense,but how about all the other casting #`s?

    Thanks
     
  6. Buickus Rex

    Buickus Rex '67 GS400 4-Speed

    Mine matches Bob's...although the dash number is different. :Do No:
     

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  7. staged67gspwr

    staged67gspwr "The Black Widow"

    Thats really wierd stuff,if you notice in my pic you cannot read the casting number that well because its not as clear as yours or Bobs.

    Thanks
     
  8. Buickus Rex

    Buickus Rex '67 GS400 4-Speed

  9. staged67gspwr

    staged67gspwr "The Black Widow"

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