C3 427 Exhaust Manifolds - NCRS Discussion Boards

C3 427 Exhaust Manifolds

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  • Art Ives

    C3 427 Exhaust Manifolds

  • Mike M.
    NCRS Past President
    • May 31, 1974
    • 8365

    #2
    Re: C3 427 Exhaust Manifolds

    i had the same thread deterioration of the K-19 exhaust manifolds on my 67 L-71 when i was readying it for Duntov judging. I had the local machine shop use cast iron compatable stick welding rods to seal the 8 holes in the two manifolds. i then used helicoils in the 8 holes to restore threads so I could fasten the two smog pipes to the manifolds. Of course, you have to disable the smog pump itself.The K-19 setup, modified of course, made it thru the judging process without detection Good luck with your manifolds mike mccagh

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