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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old Feb 14, 2009 | 06:47 PM
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Default header installation
im installing some headers right now on my 94 Z28, and i ran into some trouble with the passenger side. All the way in the back of the stock exhaust manifold, it looks like it has a metal tube attached to the manifold. Does anyone know how to remove it?
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Old Feb 14, 2009 | 07:13 PM
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Originally Posted by wolfen
im installing some headers right now on my 94 Z28, and i ran into some trouble with the passenger side. All the way in the back of the stock exhaust manifold, it looks like it has a metal tube attached to the manifold. Does anyone know how to remove it?
Are you putting race style or emission style headers on? If you are installing emissions style headers, you just have to reach up there with a wrench from the bottom and work it off slowly. If you are installing race style headers and will be deleting the EGR and EGR tube, then just cut the bitch and yank out the manifold.
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Old Feb 14, 2009 | 07:19 PM
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yea i live in CA so im doing the emission style to keep it on the safe side. Im looking for a bolt on it but i dont feel one. **** i wish i could cut that bitch off, but ill just do what you said and take a look from under, thanks.
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Old Feb 14, 2009 | 07:21 PM
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Originally Posted by wolfen
yea i live in CA so im doing the emission style to keep it on the safe side. Im looking for a bolt on it but i dont feel one. **** i wish i could cut that bitch off, but ill just do what you said and take a look from under, thanks.
The bolt is on the bottom, see here:

http://shbox.com/1/egr1.jpg
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Old Feb 14, 2009 | 07:22 PM
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Originally Posted by ss.slp.ls1
The bolt is on the bottom, see here:

http://shbox.com/1/egr1.jpg
Are you doing LT's or shorties?
I hope you're not an auto.
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Old Feb 14, 2009 | 07:22 PM
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oooooooh, ok i was looking on the tube itself, thanks a lot
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Old Feb 14, 2009 | 07:27 PM
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ok now i got it off, does the exhaust manifold slide it from the top or bottom?
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Old Feb 14, 2009 | 07:30 PM
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Originally Posted by wolfen
ok now i got it off, does the exhaust manifold slide it from the top or bottom?
I think it comes out from the top, but if you remove the y-pipe and starter, it should easily come out from the bottom. Don't forget to remove the dipstick tube.
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Old Feb 14, 2009 | 07:32 PM
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the thing that sucks is my y pipe is welded on to the cat, imma have to go buy a recipricating saw tomorrow. Yea edelbrock shorties and i have an auto.... im gonna hear it now arent i? lol
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Old Feb 14, 2009 | 07:38 PM
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Originally Posted by wolfen
the thing that sucks is my y pipe is welded on to the cat, imma have to go buy a recipricating saw tomorrow. Yea edelbrock shorties and i have an auto.... im gonna hear it now arent i? lol
Oh man...I'll spare you, lol.

I have heard of people having a difficult time putting the egr tube back on because it gets in the way of the trans dipstick. But that is with pacesetter LT headers. Hopefully it won't be a big issue for you.
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Old Feb 14, 2009 | 07:41 PM
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are new plug wires hard to put on? i just got some msd super conductors i was planning on doing also
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Old Feb 14, 2009 | 07:41 PM
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Originally Posted by ss.slp.ls1
The bolt is on the bottom, see here:

http://shbox.com/1/egr1.jpg
OMG with my pacesetters my gasket is leaking from there now and i dont have air emmisons, can i just delete the erg ****??? how do i do it? any write ups??? pm me please!!!
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Old Feb 14, 2009 | 07:44 PM
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Originally Posted by dante1313
OMG with my pacesetters my gasket is leaking from there now and i dont have air emmisons, can i just delete the erg ****???
ive seen the WS6store sells block off plates for the egr, maybe that can help
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Old Feb 14, 2009 | 07:46 PM
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Originally Posted by wolfen
ive seen the WS6store sells block off plates for the egr, maybe that can help

thx~!
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Old Feb 14, 2009 | 07:48 PM
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Originally Posted by dante1313
OMG with my pacesetters my gasket is leaking from there now and i dont have air emmisons, can i just delete the erg ****??? how do i do it? any write ups??? pm me please!!!
Yes, you can buy these:

http://cgi.ebay.com/ebaymotors/1993-...Q5fAccessories

Remove the EGR valve and the EGR tube in the picture posted above. Then put the block off plates on the back of the intake manifold and the the exhaust manifold. Also you can completely remove the AIR pump. Cap off the vacuum lines that go to the EGR valve and the AIR pump. Also cap off the AIR ports on the exhaust manifolds.
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Old Feb 14, 2009 | 07:49 PM
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Originally Posted by ss.slp.ls1
Yes, you can buy these:

http://cgi.ebay.com/ebaymotors/1993-...Q5fAccessories

Remove the EGR valve and the EGR tube in the picture posted above. Then put the block off plates on the back of the intake manifold and the the exhaust manifold. Also you can completely remove the AIR pump. Cap off the vacuum lines that go to the EGR valve and the AIR pump. Also cap off the AIR ports on the exhaust manifolds.
and this is for pacesetter longtubes? that link???
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Old Feb 14, 2009 | 08:03 PM
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Originally Posted by dante1313
and this is for pacesetter longtubes? that link???
The block off plates are universal. Two of the plates are for the back of the intake manifold, one plate is for the EGR port on the exhaust manifold.
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Old Feb 14, 2009 | 08:06 PM
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ok thanks again..haha check my post btw
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Old Feb 14, 2009 | 08:38 PM
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does anyone know the order of the wires for the opti spark?
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Old Feb 14, 2009 | 08:44 PM
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nevermind i found it
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