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  • headers?

    im helping a friend do a top end swap on his 92 3.1 were putting on the 97 3100 top end , heads, intake the whole high flow top end but we need headers and cant find any can anyone please help us, dose any one know where to get the D port flanges?

  • #2


    DIY pretty much...

    Unless you modify SS headers (cut the rears to angle down right)
    sigpic New 2010 project (click image)
    1994 3100 BERETTA. 200,000+ miles
    16.0 1/4 mile when stock. Now ???
    Original L82 Longblock
    with LA1, LX9, LX5 parts
    Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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    • #3
      the problem with cutting the ss headers is i dont need the cross over pipe, on the camaro it comes off the headers and down under the trans

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      • #4
        for a Camaro?

        any headers for the 2.8/3.1 will work fine. With a 1 5/8" primary you shouldn't have any overlap of the D.. You will have to oval out the mounting holes since the aluminum heads have a slightly wider vertical spacing.

        If you really want the D port flanges, then i'd PM "Betterthanyou", he sells them. Then i'd use Camaro headers and just cut off the old flanges and weld the new ones on. Shouldn't be too hard if you have aces to a plasma cutter.


        BTW, the '97 3100 stuff is ok but the '00+ stuff is better. At least try to get a 00+ LIM and UIM.. much better flow.
        Past Builds;
        1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
        1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
        Current Project;
        1972 Nova 12.73@105.7 MPH

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