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Has there been any advances in header gaskets in the last twenty years? I need a new set for my '70 era SBC. Any recommendations?

Thanks in advance,

John

Update 01-27-2012: Decided to go with stock manifold gaskets on my headers, based on this thread from the HotRodders website. Since the '65 has stock oval port 1970 heads using stock manifold gaskets just makes sense. http://www.hotrodders.com/forum/newreply.php?do=newreply&p=660828

I know I sure wasn`t the first to try it and suggest it, but when I was dealing with my bro in law in the racing days, we kept burning out header gaskets, so I suggested why not try exhaust manifold gaskets? we did and the problem was solved, it occured to me since they were made of steel mesh so what did we have to loose? ..... I ran the same set of exhaust manifold gaskets on my car for 5 years, they never burned out, and I took the headers off 3 times during those 5 years and reused them every time, the gaskets also having a open bottom so the gasket can just drop in from the top is a big benefit since it makes it easy, you don`t have to worry about lining it all up and holding things in place. I`m running jet hot coated headers this go round, and I`m using fel pro exhaust manifold gaskets.
 

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I took my 40 year old stock ram horns down to the machine shop, had them run across the milling machine, no gaskets, just high temp RTV, it worked just like the sandersons...
 

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I took my 40 year old stock ram horns down to the machine shop, had them run across the milling machine, no gaskets, just high temp RTV, it worked just like the sandersons...
I was looking in my '65 C-10 shop manual... they don't mention using any gaskets at all. It seems that's the "factory correct" method? (Of course that pre-dates high temp RTV)

Go Figure?
 

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I cant recall chevy ever using gaskets for exhust manifolds from factory.Always been metal to metal.Gaskets usually caused problems over time.Headers a different story of course.Installed sanderson block huggers on the ramjet without gaskets and was surprised no leaks
 

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Air injection tube

I have a question/problem. Hope I'm asking in the right place. I bought a 1983 C-10 with a 4.1 L/250 inline 6 and the person who sold it to me broke the exhaust manifold air injection tube and now I'm having trouble finding a replacement for that model. I called the dealer and they told me they no longer make that part. I also checked auto part stores and junk yards and no luck. I asked a mechanic and he told me he couldn't help me on that. Is there another alternative or place where they sell discontinued parts? Another person suggested adding headers?
 

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There`s been a bazillion sixes sold in the states, you`ll have to find one at a wrecking yard, or on Craigslist.....they are out there....! anything from `73 to about 86 should be the same.....
 

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Here you go hedman shorty part # 69646
hedman full length # is 69096
doug thorley # 3004
summit 69640
This should help you get started....NOTE some hedders not compatible with manual transmissions due to clutch linkage read the fine print...
 

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I cant recall chevy ever using gaskets for exhust manifolds from factory.Always been metal to metal.Gaskets usually caused problems over time.Headers a different story of course.Installed sanderson block huggers on the ramjet without gaskets and was surprised no leaks
You must be a pretty young guy! Chevy used gaskets on exhaust manifolds for many years. Wasn't until the late 70's or 80's when they stopped putting gaskets on exhaust manifolds.

For headers, I always use the stock type exhaust manifold metallic gaskets. Never had leakage issues once I started using these style gaskets.
 

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305 headers?

I would like to add headers and exhaust to this 1986 c 10 305 stock truck to make it sound cool. Don't care about performance as much as sound. What should I do? new to old trucks and this forum.
 

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Exhaust pipe sizing?

I'm currently running 3" exhaust pipe on my 73 truck. I got a decently healthy 383, it's carbureted and put new headers on. Just wanting some advice on if running 3" would affect performance. Also don't have the pipes "X-ing" just duals ran to underneath bed, mufflers then dumps. Would that affect performance at all? Thank you
 

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Are you running headers, if so you would get more performance from an x-pipe, even if you are running 2.5 pipes..!
 

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Ray, I don`t have an answer..for those, I know several guys running hookers, and some with sandersons ( pricey ), and some with patriots 3/4 length…the sandersons look to be like the S-10 V8 conversion headers.
 

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Rich, there's Hookers (well, what's left of them) on it now. Been on there for at least 40 years and it's time for a new set. My instinct is to buy new Hookers, but coated ones are on the pricey side. I don't mind paying for the quality, just thought I'd shop around first
 
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