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jba headers

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by oldschool75, Oct 4, 2002.

  1. oldschool75

    oldschool75 Registered Member

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    Location:
    so. cal.
    i have a 75 gmc jimmy and just bought a set of jba shorty headers. i thought they woul bolt right up but they don't. has anyone used these on an older truck like mine? what all do i have to do (short of buying jba's y pipe for $200.00 bucks)?
     
  2. GOK5

    GOK5 Registered Member

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    wandering aimlessly about
    I can't answer your question on fit as my install was on a '88 egr 350, BUT, an fyi for you is to check the milling where it bolts to the head. After 4 sets of gaskets and countless hours of beechin' /forums/images/graemlins/angryfire.gif, I found out the planeing(sp?) of JBA headers was incorrect and kept blowing the gaskets out. Took them to local machine shop for milling and have not had a problem since (2yrs)
     
  3. TIGHTWORK82 K5

    TIGHTWORK82 K5 1/2 ton status

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    Location:
    orlando , florida
    got a set of flow techs from pepboys for 110 bucks bolted up like a dream!
     
  4. Chris Demartini

    Chris Demartini 1/2 ton status

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    Location:
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    <font color="blue">Go down to your local exhaust shop and have them hook your headers up to what you have now. Thats what I did
     

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