ebay Header Install
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Those ceramic cores, I opted for metallic cores thinking I'd tune out the rear O2s, but then changed my mind...I'd recommend the Cats with the O2 bungs already installed for sure.
I'd also recommend the ball and socket flange at the collector versus a band clamp... after instlaling mine I think it would work better and also probably clear up this Pass. side clearence issue.
My Vette's a 99. Dave (Stocker) and RIP1976 what year are your's. I highly doubt this a model year problem but we should clear that up at least... I mean mine was off but I got it lined up pretty good as you can see. I loosened everything up and pryed it over towards the middle, that didn't work for Dave though. My mounting tab is covering the hole and won't go over any more so I'll jerry rig something for it later on...
No rattles or vibrations though... knock on wood!
I'd take a six foot section of 3" pipe jam it into the collector as far as it will go and bend that sucker towards the middle of the car Dave!
Last edited by tstar; Apr 4, 2007 at 02:37 PM.
Pro
Joined: May 2006
Posts: 723
Likes: 0
From: MOTOWN / Fort Dix NJ MI
these problems are common to all header installs
We had to bend some LG headers on my buddy's car for the same reasons
so anyways I got my Airtubes in today so I'm going to get those welded on ASAP and I'm just waiting on the BillyBoats
We had to bend some LG headers on my buddy's car for the same reasons
so anyways I got my Airtubes in today so I'm going to get those welded on ASAP and I'm just waiting on the BillyBoats
Pro
Joined: May 2006
Posts: 723
Likes: 0
From: MOTOWN / Fort Dix NJ MI
Those ceramic cores, I opted for metallic dores thinkng I'd tune out the rear O2s, butt hen changed my mind...I'd recommend the Cats with the O2 bungs already installed for sure.
I'd also recommend the ball and socket flange at the collector versus a band clamp... after instlaling mine I htink it would work better and also probably clear up this Pass. side clearence issue.
My Vette's a 99. Dave (Stocker) and RIP1976 what year are your's. I highly doubt this a model year problem but we should clear that up at least... I mean mine was off but I got it lined up pretty good as you can see. I loosened everything up and pryed it over towards the middle, that didn't work for Dave though. My mounting tab is covering the hole and won't go over any more so I'll jerry rig something for it later on...
No rattles or vibrations though... knock on wood!
I'd take a six foot section of 3" pipe jam it into the collector as far as it will go and bend that sucker towards the middle of the car Dave!
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
I got an answer from SS Autochrome and also from a pioneer on the "EBay Headers". You definitely have the new Headers!
Pro
Joined: Jan 2007
Posts: 552
Likes: 0
From: Lincoln Ne.
tim, I have a 99. why do u think I have the new ones? my o2s prett clearly are in a different location, my ps primary is way off and both sides are hitting the bh. my concern with a ball and socket collector is getting the header back out again with that collector on there. I'm also afraid that if I use a piece of pipe I'm gonna pull the car right off the jackstands. also the collector needs to point down a bit too and I can't do that without getting it in the air quite high. I'd think I'd need to heat the tubes up to get hem to actually bend as the tubes seem to have some give to them and just spring back to their original location..
Safety Car
Joined: Apr 2003
Posts: 3,968
Likes: 0
From: Biloxi MS Theres something happenin' here, What it is ain't exactly clear.....
Any problem with rear O2 sensors reaching those in the cats you bought?
I purchased those they were 42 bucks at performance-curve.com
I purchased those they were 42 bucks at performance-curve.com
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Pro
Joined: Jan 2007
Posts: 552
Likes: 0
From: Lincoln Ne.
few more quick pics of my o2s. It seems they are less then 1/8" from the torque tube and the headers aren't even tightened down yet. Tim, are yours that close? How do my o2 angles look compared to yours? Its hard to get a good pic of these in the tight confines. You are saying both of your headers are resting on the bell housing but making no vibrations/noises?
Thanks
Dave
Thanks
Dave
Burning Brakes
Joined: Sep 2001
Posts: 893
Likes: 38
From: ATX
Streets are $695 for headers only; I had none of the probs the ebay headers seem to present, although I did have to drill out the air tube flange bolt holes just a little bit (on the flange side).
They fit perfectly everywhere it counted, and are nowhere close to my a/c line/floorboard. I guess people are getting away with it, but I hate to think about the forces you put on your heads when you take a crowbar to the collector.
I give props to you guys for getting yours installed, but I don't feel like I got a bum deal.
They fit perfectly everywhere it counted, and are nowhere close to my a/c line/floorboard. I guess people are getting away with it, but I hate to think about the forces you put on your heads when you take a crowbar to the collector.
I give props to you guys for getting yours installed, but I don't feel like I got a bum deal.
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Dave,
Correct no vibrations or rattling... I even took a jaunt down the highway to make sure, although start up and shut down is usually where contact problems surface their ugly head in my experience anyway. I can't verify that my D side is touching but I would say my P side is...
I have to admit that I'm at a loss as to what to tell ya about the O2 bung placement in the Headers. Yours look much more vertical then mine... although your placement should work as long as they don't raise up 1/8" or more when you get em bolted up. You might want to consider adding some thick washers between the tabs and the Bellhousing mounting plate to give yourself some room, or as previously stated, use rear O2s if they are shorter... I didn't measure the ones I have in the front...
Correct no vibrations or rattling... I even took a jaunt down the highway to make sure, although start up and shut down is usually where contact problems surface their ugly head in my experience anyway. I can't verify that my D side is touching but I would say my P side is...
I have to admit that I'm at a loss as to what to tell ya about the O2 bung placement in the Headers. Yours look much more vertical then mine... although your placement should work as long as they don't raise up 1/8" or more when you get em bolted up. You might want to consider adding some thick washers between the tabs and the Bellhousing mounting plate to give yourself some room, or as previously stated, use rear O2s if they are shorter... I didn't measure the ones I have in the front...
Last edited by tstar; Apr 5, 2007 at 01:48 AM.
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Well my headers are in half **** I guess you could say. I gotta wait till tomorrow to get my new manifold gaskets so I can tighten them up to the heads I should have this done pretty early tomorrow afternoon an will post some pics asap. As far as install goes it took me about 2 1/2 hrs. My DS drove me nuts I had to remove my steering stem to get it in. The PS side didn't fall in but it wasn't all that bad either. Right now I have them both lightly bolted to the head and I'm not seeing any probs with the A/C lines or bellhouseing maybe I got lucky but we will see more tomorrow when I get it all tightened up. I'm expecting the aligment to be off like everyone elses but luckily I don't have any cats to deal with.
My steering column wasn't even close to being an issue for me. But everyone sees things differently and tackles problems from different angles. OR there is something different between the 99s and 02s... I don't know!
I wonder if GM changed the heads or motor mounts since the 99s?
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Streets are $695 for headers only; I had none of the probs the ebay headers seem to present, although I did have to drill out the air tube flange bolt holes just a little bit (on the flange side).
They fit perfectly everywhere it counted, and are nowhere close to my a/c line/floorboard. I guess people are getting away with it, but I hate to think about the forces you put on your heads when you take a crowbar to the collector.
I give props to you guys for getting yours installed, but I don't feel like I got a bum deal.
They fit perfectly everywhere it counted, and are nowhere close to my a/c line/floorboard. I guess people are getting away with it, but I hate to think about the forces you put on your heads when you take a crowbar to the collector.
I give props to you guys for getting yours installed, but I don't feel like I got a bum deal.
The only thing that makes sense to me is subtle variances in assembly at Bowling Green or model year changes that aren't obvous to most of us, like engine mounts or something...
All I know is that every Header system I've ever installed took some work and creativity to get installed...
Safety Car
Joined: Apr 2003
Posts: 3,968
Likes: 0
From: Biloxi MS Theres something happenin' here, What it is ain't exactly clear.....
Could be expensive to go stainless post-cat, but this would do it.
A 5' piece, cut to fit, will give you the two pieces needed.
Check eBay Item number: 120104082151
Then put the 3" - 2.5" reducer in there(its only 2" long)
Item number: 120104458681
(Or ask around - your local shop might be able to stretch a 2.5" piece of mild steel pipe to give a 3" end that will slip over the cats)
A 5' piece, cut to fit, will give you the two pieces needed.
Check eBay Item number: 120104082151
Then put the 3" - 2.5" reducer in there(its only 2" long)
Item number: 120104458681
(Or ask around - your local shop might be able to stretch a 2.5" piece of mild steel pipe to give a 3" end that will slip over the cats)
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Could be expensive to go stainless post-cat, but this would do it.
A 5' piece, cut to fit, will give you the two pieces needed.
Check eBay Item number: 120104082151
Then put the 3" - 2.5" reducer in there(its only 2" long)
Item number: 120104458681
(Or ask around - your local shop might be able to stretch a 2.5" piece of mild steel pipe to give a 3" end that will slip over the cats)
A 5' piece, cut to fit, will give you the two pieces needed.
Check eBay Item number: 120104082151
Then put the 3" - 2.5" reducer in there(its only 2" long)
Item number: 120104458681
(Or ask around - your local shop might be able to stretch a 2.5" piece of mild steel pipe to give a 3" end that will slip over the cats)
I'm going to have to replace my mild steel components before too long... good source for the SS pipe!
Safety Car
Joined: Apr 2003
Posts: 3,968
Likes: 0
From: Biloxi MS Theres something happenin' here, What it is ain't exactly clear.....
Dont know Tim.. Im gonna have to stop somewhere tomorrow and ask, though.
Ya think thats a good price fora 5' piece of stainless pipe?
Ya think thats a good price fora 5' piece of stainless pipe?
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
I can do some checking around. I think Jegs and Summit carry it as well and I have alot of custom Headers site saved and can try and compare prices for you if you'd like...
Hope work lightens up for you soon!
Hope work lightens up for you soon!
Pro
Joined: Jan 2007
Posts: 552
Likes: 0
From: Lincoln Ne.
the rear o2s use a different plug so that'd be a pita. I just dont get how/why our headers can be so different. I would bet that I have the old ones but I'll have to see. Those tabs will eventually break off IF I have to put washers under there. Not to mention the PS tab wont even come close to lining up even if I pry as the primary is already on the BH.
Dave
Dave
Dave,
Correct no vibrations or rattling... I even took a jaunt down the highway to make sure, although start up and shut down is usually where contact problems surface their ugly head in my experience anyway. I can't verify that my D side is touching but I would say my P side is...
I have to admit that I'm at a loss as to what to tell ya about the O2 bung placement in the Headers. Yours look much more vertical then mine... although your placement should work as long as they don't raise up 1/8" or more when you get em bolted up. You might want to consider adding some thick washers between the tabs and the Bellhousing mounting plate to give yourself some room, or as previously stated, use rear O2s if they are shorter... I didn't measure the ones I have in the front...
Correct no vibrations or rattling... I even took a jaunt down the highway to make sure, although start up and shut down is usually where contact problems surface their ugly head in my experience anyway. I can't verify that my D side is touching but I would say my P side is...
I have to admit that I'm at a loss as to what to tell ya about the O2 bung placement in the Headers. Yours look much more vertical then mine... although your placement should work as long as they don't raise up 1/8" or more when you get em bolted up. You might want to consider adding some thick washers between the tabs and the Bellhousing mounting plate to give yourself some room, or as previously stated, use rear O2s if they are shorter... I didn't measure the ones I have in the front...
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
How about this?
http://cgi.ebay.com/ebaymotors/3-Sta...9026QQtcZphoto
You could actually go halfs with someone else in the Thread fixing to do the install!
I'm STILL looking for a SS reducer!
http://cgi.ebay.com/ebaymotors/3-Sta...9026QQtcZphoto
You could actually go halfs with someone else in the Thread fixing to do the install!
I'm STILL looking for a SS reducer!
Last edited by tstar; Apr 5, 2007 at 03:05 AM.