LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

LT1 header questions

Old 10-02-2014, 10:24 PM
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LT1 header questions

Hello all. I have a couple of question and I would like to get them cleared up before I buy headers. I wanna go with long tubes and preferably stainless. Is there still any affordable stainless long tubes with A.I.R and EGR hookups? If I decide to get headers with the hook ups and then decide to get rid of the A.I.R and EGR system is there a way to block off the connections on the headers? I know about the block off plates for the engine but what about the headers themselves? Thanks again guys for any input!
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Old 10-03-2014, 07:15 AM
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Re: LT1 header questions

The PaceSetters are available with AIR/EGR. Mild steel, but available with cera-metallic coating.

Pacesetter Long Tube LT1 Headers, 96-97 w/Emissions

Interesting that they say "emissions" but I don't see any evidence in the photo.

If you buy a 3-piece EGR blockoff plate set, one of the plates is for the connection on the header #8 primary. AIR can be blocked but the specifics will be determined by what type of connection they provide on the headers... internal or external threads, requiring a plug or a cap. Not all header AIR connections match factory. Some require adapters.
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Old 10-03-2014, 08:38 AM
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Re: LT1 header questions

Here's a better picture from Summit. It looks like they have the A.I.R. ports and the EGR exhaust tube.

Pacesetter Long Tube Headers
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Old 10-03-2014, 08:43 AM
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Re: LT1 header questions

Make sure the emissions tube on the top of the header match the emissions fitting on the car. Good luck, let us know how it turns out.
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Old 10-03-2014, 01:09 PM
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Re: LT1 header questions

Ok thanks guys! I'll be getting a pair when I get the money together!
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Old 10-03-2014, 10:41 PM
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Re: LT1 header questions

Yeah stainless you'll be paying more. Stainless Works has a good set, so does Kooks.

I used to think Pace Setter's were cheap but that was several years ago. Now that I have a Z28 I'm seeing a lot of guys using them. Searching on the net I see you can get them from plain to coated. When I do go LT headers I won't rule them out by any means.
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Old 10-03-2014, 11:09 PM
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Re: LT1 header questions

Yeah they are definitely becoming popular. I need to figure out if you can still pass emissions with the egr and a.i.r codes tuned out.
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