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

HEADERS, 1986 C4. Have Hedmans NG>`

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Old Apr 25, 2010 | 07:11 PM
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Default HEADERS, 1986 C4. Have Hedmans NG>`

I have hedmans they are melting air box by heater core. Is not at all bent for C4 like they say. Any other Performance type. Would like to here them all.
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Old Apr 25, 2010 | 07:15 PM
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http://forums.corvetteforum.com/c4-t...-corvette.html
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Old Apr 25, 2010 | 07:28 PM
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What are you showing me there?
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Old Apr 25, 2010 | 07:30 PM
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Originally Posted by fordean
What are you showing me there?

It's just another thread about headers. Not a "86 but the same people make them for your car.
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Old Apr 25, 2010 | 08:17 PM
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I have hedmans on my 86. Never had an issue. Do you want them? I'm going turbo.
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Old Apr 25, 2010 | 08:28 PM
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Originally Posted by drjimmy
I have hedmans on my 86. Never had an issue. Do you want them? I'm going turbo.
Are they painted or coated? Will they work on my '96 LT-4? How much?
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Old Apr 25, 2010 | 10:57 PM
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drjimmy, i would like to see pics of the headers. PM Me.

If Vettme doesn't take them I am interested.

@Vettme: I just looked at summit, all the hedman headers are for 84-91 vettes. I am not sure if they can be adapted some way or if some simple mods can be done to make them fit

Last edited by Pwnage1337; Apr 26, 2010 at 12:44 AM.
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Old Apr 26, 2010 | 09:22 AM
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Originally Posted by fordean
I have hedmans they are melting air box by heater core. Is not at all bent for C4 like they say. Any other Performance type. Would like to here them all.
I have Hedman Elites on my 86. I put aluminum reflective tape on the box, where the header gets close. No problems. There is not a lot of room over there, so finding another brand that doesn't get near the box, is going to be tough, I would think.


Are you Hedmans, coated or painted ?
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Old Apr 26, 2010 | 11:10 AM
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I've had Hedmans on my 86 for a couple of years now with no problems. Maybe your car is running lean and causing the headers to get to hot.
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Old Apr 26, 2010 | 11:33 AM
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I was breaking in cam. Started to Smoke in car thru vents. Airbox melting. Breaking in causes excessive heat in headers. That why you dont break in with Ceramic or good headers at first. I had to kill engine so no fire. I am taking headers out. Gonna try to figure out something. It is simply to close 1/2 inch is to close to plastic I have no clue how these engineers laid out this car engine compartment. They must have been drunk.
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