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

Guide to Header Install?

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Old 09-24-2005 | 08:02 PM
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Yea, im thinkin thats a good idea, taking a break, but i have maybe 2 more times at the 1/4 this year. SO i really want this done, im mainly want to do this so much to know that i can acutally do something on my car. Blind527 do you have a ruff list of tools im might need?
Old 09-24-2005 | 08:04 PM
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Jack, jack stands, extensions, sockets, wrenches. Basic stuff man.
Old 09-24-2005 | 08:07 PM
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Cool. Another question. Whats the best Loosener spray ex. wd-40 to use?
Old 09-24-2005 | 08:08 PM
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PB Blaster.
Old 09-24-2005 | 08:11 PM
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Is it better to loosen the existing manifolds from under the car? I just went and lookd at my engine, i really cant see any bolts from uptop?
Old 09-24-2005 | 08:14 PM
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Wherever you can find a way to loosen them, it doesn't matter. The bolts are fairly easy to get to from both.
Old 09-24-2005 | 08:17 PM
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So when i jack her.........does it need to be higher than like an average jack stand? Ive seen pics of people getiing them up 2-3ft, i think people only do that if the motor mounts are bad and if they cant get the LTs in at all. Im going to get a hook up from one of my buddies working at SEARS, i need some jack stands.
Old 09-24-2005 | 08:25 PM
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You'll need to get it up high enough, but if you can't, jack up the motor. Put the jack on some boards and get some jack stands.
Old 09-24-2005 | 08:28 PM
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And then when and once i get the LTs in, im not going to get an ORY becasue im just going to get True duals, so im going to need o2 extensions right? Some people say there cars start running like **** if there run open headers, some say it doesnt effect it. I guess im better off just gettin extenisons.
Old 09-24-2005 | 08:39 PM
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You'll need front O2 extensions yes.
Old 09-24-2005 | 08:48 PM
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Im going to have to get holes put in the LTs, there the Pacesetter Race LTs, with out AIR, EGR. So im going to need o2 holes. My question is will i be able to run open headers, without my car having problems?
Old 09-24-2005 | 08:51 PM
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Uh, what? Holes? Running open headers isn't a good idea volume wise and is not recommended by a lot of people. You need to disconnect all the AIR and EGR and get them programmed out of your PCM and get block off plates for the EGR. The LT headers should already have the O2 threads in them..
Old 09-24-2005 | 08:55 PM
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http://byunspeed.com/catalog/product...93227e162812e9

Here is were im gettin them from, my friend "whynot" is sayin there is no o2 ports, so.......
Old 09-24-2005 | 09:02 PM
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PaceSetter QuikTrip Long Tube ARMOR*Coat Headers (Race Version, No EGR & O2 Sensors)
[72C2239]

also I will be around to help you get them in. so don't worry about the jack or stands, or tools.
Old 09-24-2005 | 09:06 PM
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AWSOME, much much much appreciated ted. I owe you one!

Last edited by Speed Density; 09-24-2005 at 09:51 PM.
Old 09-24-2005 | 09:14 PM
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Im not going to get an ORY, i cant afford it, so will running Open headers make the PCM think lean and rich? Im wanting to run these on the 1st of october, because thats the last race, then on the 8th im gettin my True duals. But if its going to kill my MPG and make my car run funny.....
Old 09-24-2005 | 09:14 PM
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Oh THOSEEEEEEEEE. Yeah.
Old 09-24-2005 | 09:18 PM
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Yea, what?
Old 09-24-2005 | 09:33 PM
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A couple things. You will need to extend your O2 wires but on our 93's, we use single wire O2's so you can just cut and splice wire to extend your existing O2 sensors. No need for buying extensions. Also, lots of guys with 93's have trouble getting their cars to go into closed loop with the non-heated O2's. Since youre moving the sensor further away from the motor, a heated O2 is needed to get the proper reading. It might not be a bad idea to go ahead and do a heat O2 sensor swap while youre at it.
Old 09-24-2005 | 09:34 PM
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So if i get heated o2s i can run open headers? What is this loop thing you speak of?


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