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Headers compatible with factory side exhaust

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Old Oct 21, 2011 | 05:35 PM
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Default Headers compatible with factory side exhaust

Hey guys, I'd like to install headers on my '70 base model C3. I'll be installing a 406 my son built for me, so I'd like to add headers. The car has original factory side exhaust/covers, which I'd like to keep.

So, I'm looking for compatible headers - something like shorty center dump style.

Are there any out there? Has anyone else don this?

Thanks for any help you can offer.

PLBrand
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Old Oct 21, 2011 | 05:45 PM
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Whoever told you those side pipes were original told a fib, they only came on '69 'vettes, unless you mean that the side pipes themselves are real factory pipes, in which case you worded your post kinda weird. Anyway, take a look at these:

http://www.summitracing.com/parts/HED-68280/

http://www.summitracing.com/parts/HED-68286/

You could probably also just use block huggers and have a connector pipe fabbed up by a muffler shop.


Scott
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Old Oct 21, 2011 | 06:40 PM
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Default Original

Scott, I can assure you that the side exhaust and covers are original GM parts - I've still got the receipt for them when I bought and I installed them on the car in 1975!

Neither of the Hedman sets you posted a link to would work without cutting the OE side exhaust. I'm looking for a set of short centerdump (downward facing outlets) that could mate with the OE side exhaust without any cuts/mods to the side exhaust.

In other words, I'd like to find headers that 'replace' the OE exhaust manifolds and mate directly to the OE side exhaust.

Fabing an adapter or something like that wouldn't be an issue, but I sure don't want to wreck those original side pipes. Heck, I've owned/driven the car for over 39 years!

Paul
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Old Oct 21, 2011 | 06:50 PM
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From: Oxford MA-----You just lost the game!!!!
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Originally Posted by plbrand
Scott, I can assure you that the side exhaust and covers are original GM parts - I've still got the receipt for them when I bought and I installed them on the car in 1975!

Neither of the Hedman sets you posted a link to would work without cutting the OE side exhaust. I'm looking for a set of short centerdump (downward facing outlets) that could mate with the OE side exhaust without any cuts/mods to the side exhaust.

In other words, I'd like to find headers that 'replace' the OE exhaust manifolds and mate directly to the OE side exhaust.

Fabing an adapter or something like that wouldn't be an issue, but I sure don't want to wreck those original side pipes. Heck, I've owned/driven the car for over 39 years!

Paul
Oh!!! Sorry about that, you want a bolt on replacement for the manifold. Now I understand. Check this out:

http://www.vetteheaders.com/servlet/...rvette+Headers


Scott
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Old Oct 21, 2011 | 06:50 PM
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Originally Posted by scottyp99
Whoever told you those side pipes were original told a fib, they only came on '69 'vettes, unless you mean that the side pipes themselves are real factory pipes, in which case you worded your post kinda weird. Anyway, take a look at these:

http://www.summitracing.com/parts/HED-68280/

http://www.summitracing.com/parts/HED-68286/

You could probably also just use block huggers and have a connector pipe fabbed up by a muffler shop.


Scott
From 1970-1975 Sidepipes were a dealer installed option.
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Old Oct 21, 2011 | 06:51 PM
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Originally Posted by plbrand
... I'm looking for a set of short centerdump (downward facing outlets) that could mate with the OE side exhaust without any cuts/mods to the side exhaust.

In other words, I'd like to find headers that 'replace' the OE exhaust manifolds and mate directly to the OE side exhaust. ...
Paul
It sounds like you want tubular manifolds. Real headers don't bolt in to replace manifolds.
Shorty headers would be better.
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Old Oct 21, 2011 | 07:00 PM
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headman indeed makes long tube headers that exit pointing to the sidepipe inlet they have made. them for years and are still available. contact their tech line for a part number.
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Old Oct 21, 2011 | 07:52 PM
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1969 L46 custom headers before installation. Please note the modification to the side exhaust inlet. Picture and sound of the car was before the engine rebuild. It was taken 3 years ago. Sound is much different now. The side pipes on the car are after market reproduction but I still have the original exhaust in storage. Mod was made for better breathing. Why install headers if exhaust becomes restricted entering the side pipes.

http://i1219.photobucket.com/albums/...1/IMG_5225.jpg
http://i1219.photobucket.com/albums/...1/IMG_5223.jpg
http://i1219.photobucket.com/albums/...1/IMG_5225.jpg
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Old Oct 21, 2011 | 07:54 PM
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Forgot the car

http://s1219.photobucket.com/albums/...t=VETTEPIC.mp4
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Old Oct 22, 2011 | 07:21 AM
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Hi lmb69,
It looks like you did a nice job!
What's the ground clearance like on the lowest tube of the header?
Regards,
Alan
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Old Oct 23, 2011 | 10:23 AM
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Nice car! Thanks for the info, guys, I appreciate your help.

PLBrand
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Old Oct 23, 2011 | 11:40 AM
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Originally Posted by Lemans Blue 69


This is interesting. Did you have the whole muffler ceramic coated? Whas the whole muffler custom or just the flange?
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Old Oct 23, 2011 | 11:44 AM
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Originally Posted by plbrand
Hey guys, I'd like to install headers on my '70 base model C3. I'll be installing a 406 my son built for me, so I'd like to add headers. The car has original factory side exhaust/covers, which I'd like to keep.

So, I'm looking for compatible headers - something like shorty center dump style.

Are there any out there? Has anyone else don this?

Thanks for any help you can offer.

PLBrand
In answer to your original question, if you want direct replacement, shorty headers, these from McJacks fit the bill. Pretty expensive for what they are, but they will directly replace rams horns without further modifiation to the pipes.

http://www.vetteheaders.com/servlet/...orvette/Detail
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Old Oct 23, 2011 | 06:58 PM
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Just the flange and pipe going into the muffler is custom. The muffler is orig. The headers are custom. Everything is ceramic coated. Cost me over $2000. Clearance to the ground from the lowest point of the headers is just over 8". If you looked at it, better than factory. Can access plugs with no problem. Headers and modification done right on the car then removed to be coated. Once the headers were built, we looked at the factory muffler and the small intake pipe to it and decided it would be restrictive. Blew it out to accomodate the header chamber.
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Old Oct 23, 2011 | 07:04 PM
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Will take video with sound next time I fire her up and post it. Everyone that heard it says thet it sounds like a big block.
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Old Jul 24, 2012 | 03:07 PM
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Originally Posted by Lemans Blue 69
Please note the modification to the side exhaust inlet ... Mod was made for better breathing.
Hi LMB69, I love your set up and am in hot pursuit of a set of Hedman 68286's after reading this post. As for the flange mod on the muffler, is that a Hedman piece also or is it something that you had a local shop do? I have a fresh set of SS side exhaust from Ecklers that I'd have modded to fit those headers when they arrive.

Regards, Scott
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