I am sure somebody on here has tried it. But what are the issues in using readily available LS1 longtubes with LS1 in a 3rd gen.

Specifically , does it hit the
K-memeber ?
Frame ?
Engine mount ?
Firewall ?
Trans tunnel?
Floor pan ?
or
Some steering component ?

 

Specifically , does it hit the
K-memeber ?
Frame ?
Engine mount ?
Firewall ?
Trans tunnel?
Floor pan ?
or
Some steering component ?

There.

They simply do not work, the 4th gen has a completely different front framing shape. If you want to make them work, just start from scratch, you'd be cutting them like 10" or so from the flange and re-working the rest anyways.

Save yourself the hassle.

 

i swear i just answered this same question on ls1tech for the same guy....


regardless.....IF they fit 82-92 camaro then they would be sold as 82-02 headers.

 

I've recently installed an LS6, Spohn K-member / motor mounts, Stainless Works LS1 headers, Hawk's y-pipe and exhaust with 700R4 trans. It was my experience that the headers fit well, although very tight clearances, they didn't contact anything. The challenge was clearing the y-pipe under the subframe / trans cross member. You end up losing some clearance since there just isn't any room to route the pipes other than under the subframe. I expect that depending on which transmission (and cross member) you're using will present different challenges / opportunities.

 

He's refferign to 98-02 headers

 

My headers are the 82-92 Ls1 conversion long tube headers. The one issue I ran into that I forgot to mention was that I had to cut the 700R4 flange back to clear the headers.

Here's a link to the headers on Hawk's site:
http://www.hawksthirdgenparts.com/ha...beheaders.aspx

 

Yeah, i dont think your going to find anything that will fit unlesss you build your own. all though they cost $850 a set (with gaskets and bolts), hawks headers are very nice. had 0 issues installing them, quality and fitment is very nice. i would recommend them.

 

thanks andrew......looks like u guys killed my idea with good cause at the bud.

I was able to get some kooks headers for a LS1 in a 1st gen. I just wanted to find out if it was just modifying the K-memeber and a little bit of the frame, I might give it a try.

so it s hawks SSW headers all the way.

 

do you have a picture of them installed? we tried everything to get them in place including cutting the ears off the 700r4. could not get them to fit and if we had it didnt look like we could have got anything connected to the passenger side one due to how tight of a fit it was between the subframe and 700r4

 

Here's a picture from behind the trans x-member that gives you an idea of how the collectors line up with the subframes and x-member. These are 2.5" collectors.

There isn't a lot of room to get them in place, I had to loosely install them while the engine was sitting up off of the mounts before moving the engine into it's final location.

I also cut off the forward corners of the trans x-member in order to provide more room for the pipes. I used Hawk's pre-bent Y-pipe which gave me a good starting point, but it still needed some tweaking so it didn't hit the subframe. How much room you end up with at the subframe will be determined by the k-member and motor mounts that you choose. In my case I used Spohn's LS conversion parts. Installing the engine farther forward would make the exhaust easier...

 

4th gen headers arent even close. I bought a set for $100 just to see. When the come off of the engine, they arent at the right angle. They hit the frame. I tried messing with them to get them to fit, not even close. I guess I would spent the money and go with the stainless works headers. Oh wait, I did. They fit awesome.

 

84ls1_transam or anyone on here that has installed a SSW longtubes in a 4L60E car....how does the collectors line up with the Spohn Transmission X-member ?

pic would be great

 

I'll try to get some pics this week. I did a 6-speed though. But as far as the cross member, the collectors dont go back that far. But if you go through hawks you can get it with a y-pipe and cross member. I went through f-body motorsports. The y-pipe is ok, but it goes under the crossmember and has less clearance then the Hawks. The f-body MS crossmember looks like a homemade jobby. But it works I guess. I wish I went with Hawks for alittle more money.

 

And mine are the 3" collectors and 3" y-pipe. It is tight, but It is a great fit.

 

it seems like maybe our spohn k member and motor mounts may have put the engine on a tilt. it is really tight on the passenger side like the transmission is too far over there.

 

This is quoted from hawks website on
HAWKS 82-92 Camaro/Firebird LS1 Conversion 1-3/4" Long Tube Headers

However, when using Spohn Transmission crossmembers you will have to modify crossmember some.


what does that mean ? did anybody else run into any issues ?

 

IMO...everyone has. The spohn crossmember and the Hawks/SW header set up just arent designed to work together easily. I have no idea why they havent collaborated and come up with a solution to this.

HOWEVER. The headers have nothing to do with the crossmember. The headers fit 100% fine. Its the y-pipe that hits the crossmember. You can build one to go around it, or you can clearance the crossmember to give you more room.

Or you can do it the only way that will give you good room and allow you to run a well designed y-pipe...make your own crossmember and y-pipe.

The guys that have been around alittle while will remember my thread on the hawks y-pipe. I think I might have just gotten a bad kit...but I had to chop and rebuild my y-pipe along with hacking on my spohn crossmember.

Search...there are a good number of threads on the spohn crossmember as well as the hawks set up. If you ask me...headers are 100% well worth the money. But Ide stay away from the y-pipe and just build what you need from scratch.

J.