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

long tube headers

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Old 09-17-2011, 03:36 AM
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Default long tube headers


http://www.summitracing.com/parts/PSM-70-2237/
do these headers have the o2 sensor hookups?
they dont appear to from the pic, but from i understand the o2 sensors are important.
also, if i got those, y-pipe and flowmaster cat back, would that replace my ENTIRE exhaust system?
Old 09-17-2011, 03:53 AM
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I do not see any sign of O2 bungs....they would be at the collector on each header. It ain't nothing really to just drill them out and get some O2 bungs from Summit and weld them on.I see the air injection hook ups in the pix. Do you know what brand of header they are? It look strange that they have the air injection but not O2 bungs. As for your question about your system....yes if you got those and a y-pipe and the catback system it would replace your whole system.
Old 09-17-2011, 04:04 AM
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they are pacesetter. i thought it was weird they had the AIR fittings but no o2. one more question. what do i need to get to make the o2 connection reach the sensor all they way at the collector?
Old 09-17-2011, 04:12 AM
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Texas-Speed, and Speed Inc both sell O2 Extentions.
Old 09-17-2011, 04:33 AM
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Yeah, call up Texas Speed and tell them you need O2 extensions. They are $20 a piece.
Old 09-17-2011, 07:07 AM
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Im pretty certain they have O2 bungs, you just cant see them the way the pic is taken. They're usually on top of or inside of (transmission side) the collectors
Old 09-17-2011, 10:03 AM
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I have the same exact headers. I didnt get them from summit but they have 02 bungs
Old 09-17-2011, 10:43 AM
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They have bungs in them. Those are the same set I run. The y pipe os a bitch.
Old 09-17-2011, 11:45 AM
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Ofcoarse they have o2 bungs. And YES if you get new exhaust from front to back you would then use it to replace yOur existing exhaust front to back ..lol jesus
Old 09-17-2011, 01:02 PM
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they have o2 bungs, you can even see it on the top header in the pic..
Old 09-17-2011, 01:03 PM
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and for o2 extensions.. i only needed 1, the wires actually reached on one side i forget which side, i think passenger side reaches with a little modification.. o2 harness pull out of main harness on passenger side of car real easy and will stretch
Old 09-17-2011, 02:07 PM
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I hope you guys don't buy everything online just by looking at a picture. Find out for sure, in writing, if they have O2 bungs on them. The Pacesetters are available WITH or WITHOUT bungs.

Holy ****.
Old 09-17-2011, 02:27 PM
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make sure you get the correct kind of 02 sensor extensions.

On obdII cars 96+ there is two different kind of 02 sensor plugs. Flat and square.
Old 09-17-2011, 04:46 PM
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The passanger side wire is long enough but it stretches the wire a little. I suggest the harness or extending the wires and wrapping them in heat tubing.
Old 09-17-2011, 04:52 PM
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Originally Posted by RamAir95TA
I hope you guys don't buy everything online just by looking at a picture. Find out for sure, in writing, if they have O2 bungs on them. The Pacesetters are available WITH or WITHOUT bungs.

Holy ****.
Completely agree with you on this. A little research doesn't hurt at all. It's better to buy the right item the first time around.
Old 09-17-2011, 10:25 PM
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70-2237 LT's have the O2 ports (I have the same painted headers on my 96). Pacesetter includes an O2 extension kit and crappy gaskets with each pair of headers. Trash everything but the wire included and solder them yourself if you want to save $40 (the pre-cat O2's have rectangular 4-wire pigtails assuming this is for an OBD2 car). Make sure you mark them and don't let the wires touch. I used a ton of electrical tape and wire wrap on my extensions... I pulled the wrap from factory plug wires when I replaced them during my header install.

Also, the paint on the headers will burn off in a few weeks so pick up some paint stripper and a high temp coating. Word of advice: avoid VHT Flameproof paint, it's anything but. I followed all baking instructions and the paint still flaked off. My headers after a week:



From what I've heard Eastwood makes a black high temp paint that isn't the prettiest but actually lasts.
Old 09-18-2011, 02:40 PM
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There's the bung.
Attached Thumbnails long tube headers-headers.jpg  
Old 03-03-2022, 05:32 PM
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Originally Posted by Catmaigne
70-2237 LT's have the O2 ports (I have the same painted headers on my 96). Pacesetter includes an O2 extension kit and crappy gaskets with each pair of headers. Trash everything but the wire included and solder them yourself if you want to save $40 (the pre-cat O2's have rectangular 4-wire pigtails assuming this is for an OBD2 car). Make sure you mark them and don't let the wires touch. I used a ton of electrical tape and wire wrap on my extensions... I pulled the wrap from factory plug wires when I replaced them during my header install.

Also, the paint on the headers will burn off in a few weeks so pick up some paint stripper and a high temp coating. Word of advice: avoid VHT Flameproof paint, it's anything but. I followed all baking instructions and the paint still flaked off. My headers after a week:



From what I've heard Eastwood makes a black high temp paint that isn't the prettiest but actually lasts.
what do I need to do these headers to fit a 95 firebird formula v8?
Old 03-04-2022, 06:27 AM
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Fel pro 1406 gaskets. I just did the summit pace setter knock offs and they went pretty smoothly. They came with wire to extend the o2 connections as needed. I had the SE extensions though. 95 should use the flat connections. I used ARP 12 point stainless fasteners also.



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