any early 56 guys *NM* - NCRS Discussion Boards

any early 56 guys *NM*

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  • Roy B.
    Expired
    • February 1, 1975
    • 7044

    any early 56 guys *NM*

  • Dan A.
    Extremely Frequent Poster
    • May 31, 1974
    • 1074

    #2
    Re: any early 56 guys

    Can anyhone shed some light on when the change from first design to second may have occurred?

    1. with the exhaust manifolds illustrated here by Roy?

    2. and with the intake manifolds?

    Comment

    • Rob Dame

      #3
      Re: any early 56 guys

      According to what I have read the two bolt manifolds and the 725 intake with casting flaws were used up to about #600

      Comment

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