1977 GP Exhaust Manifold

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  #1  
Old 02-02-2013 | 02:08 PM
Mike Green's Avatar
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Default 1977 GP Exhaust Manifold

Hi To all. This is my first post.

I have an ultra clean '77 GP (400 cid), and the LHS exhaust manifold is cracked. I believe the GM part number is 499623.


1. Are the 1977 400 CID Firebird exhaust manifolds the same as the GP ?

2. Where can I purchase a (preferably new) exhaust manifold ?

3. Has anybody had any luck welding an exhaust manifold ?


Thanks,

M....
 
  #2  
Old 05-09-2015 | 02:59 AM
cuz68's Avatar
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Joined: Apr 2015
Posts: 142
Wink

Yes, You need one for a fullsize GP or a firebird, Thay use the center dunp. The A bodys use the back dumps where the exhaust comes out.
 

Last edited by cuz68; 05-23-2015 at 03:13 AM. Reason: More info
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