OBX Longtube install question
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Instructor
Joined: Aug 2008
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OBX Longtube install question
I just installed my OBX headers but there's no way that the bracket on the bottom of the headers, bolts to the two holes in the bell housing that the stock H-pipe bolts do. The header brackets appear to be about an inch to wide and an inch towards that rear of the car relative to the stock holes. The headers didn't come with any hardware that would address this. I was wondering if any of you have encountered this and how you solved it? I was thinking worse comes to worse, I could machine something? Also, is it bad to be driving the car with the headers only bolted to the motor and the x-pipe in the meantime?
Advanced
Joined: Oct 2009
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From: Soledad California
I read that those brackets are for alignment only. I have the obx headers on my z06, and I too was wondering why them brackets where not fitting correctly. Then I did some reasearch and found that it was for alignment only. Hope this helps.
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From: It's true money can't buy happiness, but it is more comfortable crying in a Corvette than on a bicyc
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Also heard the bracket can contribute to cracking at the collectors. But I have the bracket on mine. Without it the system is still stable and solid.
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Joined: Dec 2003
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From: chandler az
If you feel you want to have those mounted it only takes a flat stock of metal and four holes drilled into it. A few washers for vertical alignment and you're done. It took me about an hour to make something to work.
They mount one the bellhousing, so when the engine moves the headers go with it.
http://forums.corvetteforum.com/pict...ictureid=22476
..and yes the bracket is crooked, but so are the tabs.
They mount one the bellhousing, so when the engine moves the headers go with it.
http://forums.corvetteforum.com/pict...ictureid=22476
..and yes the bracket is crooked, but so are the tabs.
Last edited by chevylad; Feb 28, 2010 at 11:58 AM. Reason: add picture
Team Owner
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From: Lake Elsinore, CA
The alignment of those tabs has plagued LT fabricators since LT's for the C5 first appeared. The tabs on my FLP's were way off until I massaged them into alignment over the course of a couple of sessions.
The AR headers I installed on my wife's C5 don't even have the tabs - not really needed.
The AR headers I installed on my wife's C5 don't even have the tabs - not really needed.
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From: chandler az
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FWIW:
Some people had mentioned the collector tabs were a bitch to get aligned. As there should be no tension on these, I loosened the 2 bolts at the top of this mounting bracket. It allows the bracket to move around enough to get the bolts started without force. This had NO EFFECT alining the rest of the exhaust.The PS tab was off by about 1 inch........a sign of some alignment problems down the road, even with the system installed loose........
This made my FLPs fit well.......
Some people had mentioned the collector tabs were a bitch to get aligned. As there should be no tension on these, I loosened the 2 bolts at the top of this mounting bracket. It allows the bracket to move around enough to get the bolts started without force. This had NO EFFECT alining the rest of the exhaust.The PS tab was off by about 1 inch........a sign of some alignment problems down the road, even with the system installed loose........
This made my FLPs fit well.......
Last edited by Allthrottleandsomebottle; Mar 1, 2010 at 11:01 AM.
Pro
Joined: Dec 2003
Posts: 654
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From: chandler az
FWIW:
Some people had mentioned the collector tabs were a bitch to get aligned. As there should be no tension on these, I loosened the 2 bolts at the top of this mounting bracket. It allows the bracket to move around enough to get the bolts started without force. This had NO EFFECT alining the rest of the exhaust.The PS tab was off by about 1 inch........a sign of some alignment problems down the road, even with the system installed loose........
This made my FLPs fit well.......
Some people had mentioned the collector tabs were a bitch to get aligned. As there should be no tension on these, I loosened the 2 bolts at the top of this mounting bracket. It allows the bracket to move around enough to get the bolts started without force. This had NO EFFECT alining the rest of the exhaust.The PS tab was off by about 1 inch........a sign of some alignment problems down the road, even with the system installed loose........
This made my FLPs fit well.......
