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TBI swap / intake questions..

Discussion in 'The Garage' started by uglychevyZZ4, Mar 17, 2006.

  1. uglychevyZZ4

    uglychevyZZ4 3/4 ton status

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    I cant remember if a non-TBI block will accept a TBI intake??? i ferget :D

    also, ive seen the TBI adapters that fit a carb intake.. anyone know where to find those?
     
    Last edited: Mar 17, 2006
  2. sweetk30

    sweetk30 professional hooker Premium Member

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    yes just need to use tbi heads or oval out the 4 center holes and use lots of rtv sealent in them.
     
  3. mouse

    mouse 1/2 ton status

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    I ovaled out the center holes and it works great. No added RTV and no leaks either...I used the intake gaskets for the 1989 sub that I stole the parts from. The area that is ovaled is above a solid part of the head. If you take too much material out I could see a leakage problem. I used the 400 sbc in my garage as a mock up while I opened the holes. I did just enough to make it work.
     
  4. Russell

    Russell LB7 Tahoe Status Premium Member GMOTM Winner

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    I put a TBI setup on my 73 Nova 350, and yeah, had to round out four bolt holes in the center of the TBI intake. I wound up using a machine at the school to also countersink the bolts a touch. I put some copper based thread sealer / anti-sieze compound on all the intake bolts, and I have not noticed any leakage after doing so :)
     

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