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I need help with used headers please come in...

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Old Sep 29, 2005 | 08:12 PM
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From: Chandler Az
Default I need help with used headers please come in...

I bought a set of LG longtubes that are used. Now here is the dilemma what gaskets to get from the dealer? what year part #? Also i have a 2000 these are for a 2001+ what do i need to make these fit exactly can anyone give me some part numbers or pix or both if possible. Sorry for the questions just want to make sure i get all at once so i can get my car rollin. Thanks again....

R.
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Old Sep 29, 2005 | 08:38 PM
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The factory gaskets are high quality and reusable. You won't need to buy new gaskets. In fact, most that buy aftermarket gaskets complain they leak.
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Old Sep 29, 2005 | 08:42 PM
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Use the stock GM gaskets. I would replace them with new ones though.
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Old Sep 29, 2005 | 08:48 PM
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From: Kyle TX (Because Mojo Made me fill it in)
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If you want to make life easy on yourself, buy a 01+ dipstick and tube. Otherwise you will have to fab something up to mount the dipstick tube. You can also get LS1 f-body exhaust manifold gasket because the ports are round and should match the header ports better.
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Old Sep 29, 2005 | 08:50 PM
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The gaskets I used on my 01 were GM part # 12558573
They are the metal round port gaskets...although commonly referred to as the F-body gasketc, I don't what gasket was used on what cars or if and how they differed, these may have been OE on the C5's too for all I know....I just gave the guy at the dealer that part #.

The main adaptation you will need to do to fit the headers on your car is modifying the air connection tubes, and dipstick relocation. The gasket # above will work fine for you though.

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Old Sep 29, 2005 | 10:17 PM
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Originally Posted by Y2Kvert4me
The gaskets I used on my 01 were GM part # 12558573
They are the metal round port gaskets...although commonly referred to as the F-body gasketc, I don't what gasket was used on what cars or if and how they differed, these may have been OE on the C5's too for all I know....I just gave the guy at the dealer that part #.
I just ordered gaskets for a 99 coupe and that was the part number they gave me. I think all 99 and before C5's use these.
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