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LS6 Intake?

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Old Jan 13, 2006 | 05:37 PM
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Default LS6 Intake?

How can you tell the difference between a standard ls1 intake vs. an ls6? I have a 99 SS motor and t56.
I want to go with the ls6 intake, tr 224/224/114 cam and 918 springs with custom long tube headers for my 69 Camaro.
Thanks for the help.
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Old Jan 13, 2006 | 05:44 PM
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i think the #s are on the drivers side of the intake for the ls6 & the #s are on the pass side for the ls1,
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Old Jan 13, 2006 | 05:54 PM
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LS6 intake doesnt have EGR, and has a flat bottom.
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Old Jan 13, 2006 | 06:58 PM
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I made a thread about this recently, and this is the reply I got.

the flat bottom, increases's the plenum volume and theres a bit of refinement in the runners vs the ls1 intake.



ls1 on left, ls6 on right.
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Old Jan 13, 2006 | 07:22 PM
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Will all LS6 intakes bolt to a f body or do the corvette ones not have studs for the throttle plate? Not tryin to hijack your thread but figured it would be good to know as well.
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Old Jan 13, 2006 | 07:55 PM
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Originally Posted by THE CHOP SHOP
Will all LS6 intakes bolt to a f body or do the corvette ones not have studs for the throttle plate? Not tryin to hijack your thread but figured it would be good to know as well.
Right. The LS6 vette intake doesn't have the brass inserts for the throttle cable. The plastic base is there, not sure if some brass inserts can be retro fitted.
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Old Jan 14, 2006 | 01:08 AM
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Originally Posted by WILWAXU
Right. The LS6 vette intake doesn't have the brass inserts for the throttle cable. The plastic base is there, not sure if some brass inserts can be retro fitted.
Is there any way to tell what kind of intake it is without removing it from the car? Are there any identifying marks or something I can look for from without seeing the underneath?
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Old Jan 14, 2006 | 02:57 AM
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Directly on top of the intake (right after it meets the throttle body) there would be a EGR tube coming out of the intake and then going to the left if it was an LS1 intake. LS6's don't have the EGR although I have heard of some that can be ordered with EGR
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Old Jan 14, 2006 | 07:43 AM
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Originally Posted by ChaseSS
Directly on top of the intake (right after it meets the throttle body) there would be a EGR tube coming out of the intake and then going to the left if it was an LS1 intake. LS6's don't have the EGR although I have heard of some that can be ordered with EGR
the vette ls1 doesn't have that
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Old Jan 14, 2006 | 09:45 AM
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Originally Posted by THE CHOP SHOP
Will all LS6 intakes bolt to a f body or do the corvette ones not have studs for the throttle plate? Not tryin to hijack your thread but figured it would be good to know as well.

No problem, the more I can learn the better.
Thanks guys for everything.
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Old Jan 14, 2006 | 10:06 AM
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Originally Posted by WILWAXU
Right. The LS6 vette intake doesn't have the brass inserts for the throttle cable. The plastic base is there, not sure if some brass inserts can be retro fitted.

Yep, right on the money about that. Something I didn't think about when I bought a vette LS6 intake.

Those brass inserts can be removed and put in the new intake, but it ain't easy at all. Took me almost an hour to do it, and ended up heating/melting the old intake to get them out. I would see if you can order those inserts from GM first. I wish I would have.
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Old Jan 14, 2006 | 12:22 PM
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Originally Posted by ramairstyle00
the vette ls1 doesn't have that
So basically there is no way of telling which intake I have then is there?
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Old Jan 14, 2006 | 01:47 PM
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Check the part number on the manifold.
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Old Jan 14, 2006 | 03:23 PM
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12573572 is a LS6 intake part number, located on the drivers side intake. I have read the ls1 intake number is on the passenger side of the intake.
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