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Stock Exhaust Manifolds

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Old Sep 9, 2008 | 02:50 PM
  #1  
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From: New Mexico
Car: 87 GTA
Engine: 5.0 LB9
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Stock Exhaust Manifolds

Hi,,,The Mission Here is stock appearance,,,so no headers at all..

the question is there anything you can do with these boat anchors too make them flow a bit better or does anyone know of stock appearance aftermarket ones...

Thanks Rail
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Old Sep 9, 2008 | 07:17 PM
  #2  
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From: Southern Wisconsin
Car: 1988 Camaro
Engine: 383 Stroker
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Axle/Gears: 3.73
Re: Stock Exhaust Manifolds

Not to my knowledge. The design of the "boat anchors" really hurt the exhaust flow, and I don't believe they make aftermarket ones that flow more, just stock replacements
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Old Sep 9, 2008 | 07:20 PM
  #3  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Stock Exhaust Manifolds

I do know, some flow better than others.
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Old Sep 9, 2008 | 07:23 PM
  #4  
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From: New Mexico
Car: 87 GTA
Engine: 5.0 LB9
Transmission: 700-r
Axle/Gears: 3.23
Re: Stock Exhaust Manifolds

ya ive had it up too here :--->points at top of head ,,,,with this stock appearance crud ,,,but its a parameter of the build so im doomed too restriction

but ya play the cards your dealt thanks for the input guys

regards rail
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Old Sep 9, 2008 | 07:30 PM
  #5  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Stock Exhaust Manifolds

I think it is the L98 manifolds flow better than the L03s....I'm sure porting & extrude-honing them couldn't hurt.
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Old Sep 9, 2008 | 07:36 PM
  #6  
Railguy's Avatar
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From: New Mexico
Car: 87 GTA
Engine: 5.0 LB9
Transmission: 700-r
Axle/Gears: 3.23
Re: Stock Exhaust Manifolds

wow great cheap idea thanks

i would imagine they would have better flow

worth it lol i bet i get em free hahha

nah dude at the yard is mr 10 dollar lol

ya get 1 small part or ten it seems too be 10 dollars

thanks again rail
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Old Sep 9, 2008 | 07:48 PM
  #7  
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Stock Exhaust Manifolds

Oh yeah.....

Think about using Corvette aluminum L98 heads, painted black, to keep the stock look. Unless you are getting aftermarket aluminum heads.

Either way, paint them black to hide them.
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Old Jan 17, 2012 | 08:46 PM
  #8  
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From: Northern Nevada
Car: 1988 IROC-Z Camaro
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Re: Stock Exhaust Manifolds

what year corvettes had those engines, so i can try and find one at the boneyard
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