LS1 88-2000 truck/suburban header thread

[NITROUS]

I thought I'd start a thread like this again and see what we can come up with. What kind of headers did you get to fit in you OBS trucks? Looks like S&P G-Body headers will work with some mods to the frame or sending them mback to get the tubes bent.

Please post what you've done. Thanks

[RedHeartbeat]

I've been thinking about getting a set of long tubes from hooker that fit the 93 and buy LS1 flanges and tubing to marry them together. Food 4 thought.

[1BADC10]

Can tell you from experience, Pacesetters will not fit (w/o notching). If you're good with boxing frames, or want to spend the money, go for it. I hear S&P does custom headers for the OBS trucks, but they're not cheap.

F-body & truck manifolds (w/o AIR & EGR) seem to fit best w/o mods. If someone posts more thoughts, there may be some light at the end of the tunnel for OBS LT setups.

[motoxlifer]

<div class='quotetop'>QUOTE(zro26t &#064; Jan 23 2006, 12&#58;20 PM) [snapback]41951[/snapback]</div>

Can tell you from experience, Pacesetters will not fit (w/o notching). If you&#39;re good with boxing frames, or want to spend the money, go for it. I hear S&P does custom headers for the OBS trucks, but they&#39;re not cheap.

F-body & truck manifolds (w/o AIR & EGR) seem to fit best w/o mods. If someone posts more thoughts, there may be some light at the end of the tunnel for OBS LT setups.
[/b]

I can&#39;t say from personal experience but I talked to a guy online with the same setup as me who tried Pacesetters for a late model 1/2 ton and they hit the frame on the p side I think.

[ducky]

man decisions for headers back to mufflers are so hard to pick out. especially when i decide to do an engine swap. i dunno what im going to pick. i guess this thread will help

[motoxlifer]

<div class='quotetop'>QUOTE(duckysbht &#064; Jan 23 2006, 06&#58;57 PM) [snapback]41988[/snapback]</div>

man decisions for headers back to mufflers are so hard to pick out. especially when i decide to do an engine swap. i dunno what im going to pick. i guess this thread will help
[/b]

You actually have many options for your truck, so I guess you would have kind of a hard decision to make. Those of us with 88-98 bodystyle trucks don&#39;t have alot of choices so our decision is alot easier. It&#39;s just a matter of FINDING a decent header.

[NITROUS]

Here&#39;s a pic of Nicks G-Body header on the passenger side. Not to great a picture but you can see how close it os to the upper control arm bushing ecentrics. This is on a 98 Chevy.

[RedHeartbeat]

Stirring up the ant hill again, are we Lance?

[NITROUS]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Jan 23 2006, 10&#58;04 PM) [snapback]42019[/snapback]</div>

Stirring up the ant hill again, are we Lance?
[/b]

Ya, that&#39;s what makes this forum fun&#33; LOL

[motoxlifer]

The above pic is pretty much what I&#39;ve got on mine, although that really isn&#39;t where the major problem lies. The real problem is with the #2 cyl. tube, it runs sort of behind all the others and over the top of the motor mount and this is where it hits and won&#39;t allow the flange to pull up flush with the head, thus the need for a hammer. I&#39;ll take some pics and post up later.