Header Flange
Thread Starter
Teching In
Joined: Jul 2007
Posts: 49
Likes: 2
From: Iowa City, IA
Header Flange Well I am to the exhaust portion of my install of a 6.0L in a stock front clip 1966 Chevy II. I need to order a set of header flanges and I was just wondering what brand of flanges do you guys get? I see that GM offers a header flange in 1 3/4 ( part #12480130 ), but I also noticed that patriot exhaust also offers a flange kit. They only thing that I don't get about patriots is they list the flange in three sizes 1 5/8 - 1 7/8 with the same part number. Has anyone used the patriot header flange before? Just checking out what options I have before I order.
Thanks,
Jared
Thanks,
Jared
I have an extra GM flange I can sell you for $25 plus shipping. It is brand new in the original box. If you need any measurements off of it to compare to the patriot flanges I can get those for you too.
Thread Starter
Teching In
Joined: Jul 2007
Posts: 49
Likes: 2
From: Iowa City, IA
I searched the GM flange and came up with some measurements, I believe they are 3/8ths thick and have a primary size of 1 3/4. Does that match the measurements of the GM flange that you have 76LQ9TA?
Thanks for the fast response,
Jared
Thanks for the fast response,
Jared
Teching In
Joined: Apr 2008
Posts: 5
Likes: 0
From: DFW, TX
Headers Lowdeuce-
I'm getting ready to start the same swap, but in a 64 II. My biggest concern has been headers. I'm going to do a rack and pinion conversion to free up some space, and am hopeful that a set of headers from S&S Headers http://www.ssheaders.com/muscle.htm (#5207) might fit. I spoke to the tech guy there, and he indicated that they will several cars with R&P conversion, maybe even a stock front clip! He said that these headers really hug the block, so I've decided to order a set when I'm ready, and try them out. I was told if they are not dinged up, I can return them.
Not sure if you have done this conversion, but it may be worth a shot if you don't have to build headers.
-Jeff
I'm getting ready to start the same swap, but in a 64 II. My biggest concern has been headers. I'm going to do a rack and pinion conversion to free up some space, and am hopeful that a set of headers from S&S Headers http://www.ssheaders.com/muscle.htm (#5207) might fit. I spoke to the tech guy there, and he indicated that they will several cars with R&P conversion, maybe even a stock front clip! He said that these headers really hug the block, so I've decided to order a set when I'm ready, and try them out. I was told if they are not dinged up, I can return them.
Not sure if you have done this conversion, but it may be worth a shot if you don't have to build headers.
-Jeff
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headers I modified my old fender well headers, I used only 2 new tubes, all the other tube are the pieces I cut off the old flanges. I used the GM flanges they're nice. Here's a pic of my junk.
Originally Posted by 63chevyll
I modified my old fender well headers, I used only 2 new tubes, all the other tube are the pieces I cut off the old flanges. I used the GM flanges they're nice.
I'm going to be doing much the same thing with my project, I sure wouldn't complain if you felt like posting a picture that focused on the flange... 
Yeah This is the thread I have been waiting for ! I have a 67 chevy II I am doing an LS6 swap into with the stock clip on it as well , What oil pan did you guys use on your cars ?
my plans are the cut up my fenderwell headers like 63chevyII did. Can you post more pics I would love to see more
my plans are the cut up my fenderwell headers like 63chevyII did. Can you post more pics I would love to see more
Last edited by protrax; Jun 8, 2008 at 04:20 PM.
Yeah This is the thread I have been waiting for ! I have a 67 chevy II I am doing an LS6 swap into with the stock clip on it as well , What oil pan did you guys use on your cars ?
my plans are the cut up my fenderwell headers like 63chevyII did. Can you post more pics I would love to see more
my plans are the cut up my fenderwell headers like 63chevyII did. Can you post more pics I would love to see more
Jack
Thread Starter
Teching In
Joined: Jul 2007
Posts: 49
Likes: 2
From: Iowa City, IA
Has anyone looked into the 351W swap headers used on early mustangs, since the front clip is basically the same design as a Chevy II front end? I believe the deck height of a 351W is very similar to the deck height of an LS1. Might be another option for headers on a stock front clip.
Jared
Jared
Kudos to you 63chevyll - it looks like you did a really nice job there... And that first picture you posted (that shows the thickness of the flange) is just what I was looking for - thank you! Good luck w/ the rest of the project. 
Zedzag - I'd be interested in the pair you have, if I thought that shipping them to me (here in the US) wouldn't cost more than my simply buying them new...
Here's a bump hoping that you get a quick sale.
And that first picture you posted (that shows the thickness of the flange) is just what I was looking for - thank you! Good luck w/ the rest of the project. Zedzag - I'd be interested in the pair you have, if I thought that shipping them to me (here in the US) wouldn't cost more than my simply buying them new...
Here's a bump hoping that you get a quick sale. Very nice job ! this is really going to help me alot , I will post picks of my 67 as I get going in the next couple weeks
Thanks for the pics and info , I can't wait to drive it again
well guys I tried to fit my Ls6 in the nova last night, my corvette batwing pan is definitelly not going to work! I need to find the GTO pan and you have suggested.
where can I find s &p
where can I find s &p
