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1981 350 Exhaust manifolds

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Old 10-03-2017, 01:28 PM
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tehjrow
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Default 1981 350 Exhaust manifolds

I'm planning to remove the AIR pump so I need to replace the exhaust manifolds (I don't want to try to dill/tap/weld my old ones). When I look for replacements I find ones that have the AIR ports coming in straight inline with the spark plugs but the ones on my car go straight down and don't appear to be threaded.

When I search for 1981 Corvette Exhaust Manifolds they all look like this
https://www.summitracing.com/ga/part...aillocation=ga

But mine don't look anything like that. I guess what i'm asking is, which manifolds should I get that don't have AIR ports and will line up to the rest of the original exhaust? Or, is there a set of headers that aren't super expensive that will also line up with the original exhaust? I'm not quite ready to replace the exhaust yet.
Old 10-03-2017, 02:07 PM
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MelWff
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that one doesnt fit your car and Dorman does not make one for the 81 Corvette.
Here is one on ebay
https://www.ebay.com/i/201609293712?chn=ps&dispItem=1
Old 10-03-2017, 02:11 PM
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tehjrow
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yeah that's what mine look like. Guess i'm not gonna find some without the tubes unless i happen across some where someone else has already removed them. And I also guess that headers won't work with the original exhaust since the manifolds connect straight down and headers
go back.
Old 10-03-2017, 03:20 PM
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Easy Mike
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FWIW: What Summit shows in the link are not 81-82 exhaust manifolds.
Old 10-03-2017, 03:29 PM
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jim-81
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Originally Posted by tehjrow
yeah that's what mine look like. Guess i'm not gonna find some without the tubes unless i happen across some where someone else has already removed them. And I also guess that headers won't work with the original exhaust since the manifolds connect straight down and headers
go back.
Yes I think that is correct.
Old 10-03-2017, 03:29 PM
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Dynra Rockets
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Here is a thread from last week with a Jegs model that looks promising to being bolt in?

https://www.corvetteforum.com/forums...t-headers.html

R

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