C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

hooker header 2149 install error...need help

Old Jun 17, 2007 | 12:37 PM
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Default hooker header 2149 install error...need help

ok all
today i went in to check for valve leak and other stuff
i went to tighten my header bolts and saw something i dont think is right

passenger sider header tube closest to the firewall

there is a tube that comes up from the heder tube looks like something should be mounted to it but there is nothing there
should this tube be caped off... its open now or did somebody forget todo something


85 vette with hooker 2149 headers

i do not know how to post pictures or i would
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Old Jun 17, 2007 | 12:39 PM
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It sounds like the EGR tube. And yes, if you're not using it, it'll need to be capped.
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Old Jun 17, 2007 | 01:16 PM
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I also have the 2149 headers. When I installed them, I fabricated a tube that would connect to my intake manifold for the EGR. Fast forward a couple of months down the road, and I go to install some roller rockers. I disconnect the EGR tube that I had fabricated because it goes over the valve cover a little bit, and I notice that there is no carbon on the inside of it. When I look down the flanged tube on the header, I see that is is welded to the outside of the primary (there is no hole for any exhaust gases to pass through). So I drilled a hole so that it could work. Maybe my set of header were an accident, but if yours are the same way, you won't need to cap that off.

Last edited by skunklookingcar; Jun 17, 2007 at 01:18 PM. Reason: spelling
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Old Jun 17, 2007 | 01:35 PM
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here hope this helps
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Old Jun 17, 2007 | 02:03 PM
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That's for an EGR tube.
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Old Jun 17, 2007 | 02:18 PM
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that is EGR, needs to be blocked off there and at the manifold

oops, if its 85, the EGR is internal....later cars would have to worry about capping at the manifold

Last edited by vader86; Jun 17, 2007 at 04:15 PM.
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Old Jun 17, 2007 | 03:10 PM
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Originally Posted by ittybittyfds
ok all
today i went in to check for valve leak and other stuff
i went to tighten my header bolts and saw something i dont think is right

passenger sider header tube closest to the firewall

there is a tube that comes up from the heder tube looks like something should be mounted to it but there is nothing there
should this tube be caped off... its open now or did somebody forget todo something


85 vette with hooker 2149 headers

i do not know how to post pictures or i would
Before you panic - verify that the tube is drilled out into the header tube if it isn't - no need to cap it - 2149's I had that tube welded on but wasnt drilled through
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Old Jun 17, 2007 | 03:14 PM
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Originally Posted by ittybittyfds
here hope this helps

On the '85 you do not need that tube. You can hack it off if you like, or cap it off. There should be the header pipe inside that tube opening so no problem with using the car.
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Old Jun 17, 2007 | 04:52 PM
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thank you all...it is not drilled through.......it had me very curious considering i failed emissions with high N20 so i figured possibly EGR
now im back to square 1

thank you all for your input
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