C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Found some used headers

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Old Aug 23, 2017 | 03:29 PM
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Default Found some used headers

I found some used headers. They appear as if they will fit. The guy from craigslist claimed they came off of an 80's chevy truck. They go straight down and straight back and look like the headers for c4's that i have seen before. They are longer tubes. It did not come with gaskets.

Assuming everything works do you guys think high temp silicon will work for gaskets? What would you use? Not sure that I can buy gaskets that fits as I don't know the maker or model.

Any suggestions? Any issues I may encounter in installation? How hard are these to install on c4's? I have an l98.
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Old Aug 23, 2017 | 04:04 PM
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If the headers aren't made specifically for a C4 Corvette, I really don't think they will fit.. If you look up headers for a C4 Corvette you will see that they won't fit any other car, so I really doubt truck headers will work...WW
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Last edited by WW7; Aug 23, 2017 at 04:09 PM.
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Old Aug 23, 2017 | 07:11 PM
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Surprisingly, I measured everything and I believe it fits perfect. However I see that the current manifold has some smog set up running into the manifolds. If i disconnect them and they are not connected into the new headers will it cause an issue? what are these lines going into the manifolds?
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Old Aug 23, 2017 | 07:43 PM
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Most any small block gasket will work. You can either hook your smog to those headers or block it off if you don't have testing.

I think truck headers are going to hang down way to far to work on a Vette though.
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Old Aug 23, 2017 | 07:48 PM
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Save your money for a set of Corvette headers. Those things will hang down or hit your steering shaft or brake booster. You'll be wasting your money.
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Old Aug 23, 2017 | 08:37 PM
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If you don't want to spend a lot of money get a set of Hedman headers , then you will know they fit...WW
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Old Aug 24, 2017 | 12:26 AM
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If your from Cali (profile is empty) headers are not legal. Period.

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Old Aug 24, 2017 | 11:27 AM
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Originally Posted by JrRifleCoach
If your from Cali (profile is empty) headers are not legal. Period.

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