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intake manifold question

Old Mar 2, 2010 | 07:09 PM
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Default intake manifold question

so i was just surfen threw some corvette articles and came across a manifold porting thread..they used a LS2 intake manifold.

i was just wondering if anyone has ever ported a LS6 intake manifold..and if so what kinda hp/tq gains can be expected..or is this not heard of with LS6 manifolds..

here is the article
http://www.highperformancepontiac.co.../photo_04.html
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Old Mar 2, 2010 | 07:35 PM
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I had my LS6 manifold professionally ported but did not dyno it beforehand so I can't speak for how much it was worth. I can say going from the LS1 stock intake to the LS6 ported intake was worth right at 13 rwhp.
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Old Mar 2, 2010 | 08:59 PM
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HOLY CRAP! Thats "JUST" the information that I needed. THANK YOU!

Great article!

BC
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Old Mar 2, 2010 | 09:20 PM
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Originally Posted by Mark C5
I had my LS6 manifold professionally ported but did not dyno it beforehand so I can't speak for how much it was worth. I can say going from the LS1 stock intake to the LS6 ported intake was worth right at 13 rwhp.
arent the ls1 intake manifolds different from the ls6 intake manifolds..i was curious to what the difference was between a ls6 intake manifold was and a ported ls6 intake manifold (if this has been done)

Originally Posted by Bill Curlee
HOLY CRAP! Thats "JUST" the information that I needed. THANK YOU!

Great article!

BC
haha glad the thread can help!
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Old Mar 2, 2010 | 09:28 PM
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Originally Posted by Badd LS6
arent the ls1 intake manifolds different from the ls6 intake manifolds..
97-00 LS1 intake mainfolds are the same. The LS1 and LS6 intake manifolds are the same from 2001-2004.....
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Old Mar 2, 2010 | 09:31 PM
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hahaha ive never heard of anyone porting a ls2, the ls6 is the best intake other than a fast out there
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Old Mar 2, 2010 | 09:34 PM
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Originally Posted by NotAZO6
hahaha ive never heard of anyone porting a ls2, the ls6 is the best intake other than a fast out there
articles up top..wouldnt the ls2 intake be better than the ls1/ls6 intake?
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Old Mar 2, 2010 | 09:35 PM
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Originally Posted by Badd LS6
\wouldnt the ls2 intake be better than the ls1/ls6 intake?
No......stock for stock
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Old Mar 2, 2010 | 10:03 PM
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original question still unanswered...has anyone ported a ls6 intake manifold (has it even been done before with any hp/tq gains)
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Old Mar 2, 2010 | 10:04 PM
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ls6 is the best flowing stock intake that came on the lsx engines
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Old Mar 2, 2010 | 10:04 PM
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Originally Posted by Badd LS6
original question still unanswered...has anyone ported a ls6 intake manifold (has it even been done before with any hp/tq gains)
The one i have on my corvette is ported, but i bought it ported from a member on the fourm. He had it ported by a shop professionaly.
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Old Mar 2, 2010 | 10:06 PM
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The LS6 manifold is MUCH better than the early LS1 intake manifold.

Heres a pic of the bottom of an LS1:



The LS6 has a larger plenum and flows better The bottom of the intake is flatter:



My wife has an 06 Coupe and now that I know that it is a three piece intake, I will dig into it for some more HP! Ive already ported the TB with great results.
I really enjoy porting. Its relaxing!

BC
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Old Mar 2, 2010 | 10:08 PM
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3 piece intake are bad for boosted cars. go with the ls6
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Old Mar 2, 2010 | 10:15 PM
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Originally Posted by Bill Curlee
My wife has an 06 Coupe and now that I know that it is a three piece intake, I will dig into it for some more HP! Ive already ported the TB with great results.
I really enjoy porting. Its relaxing!

BC
I don't think it's quite that simple...
While it is a "three piece" manifold, the pieces are sonic welded together.
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