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LS1 vs LS6 Intake

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Old Jan 21, 2009 | 04:18 PM
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Default LS1 vs LS6 Intake

what is the difference physically between these two intakes. I am not talking about how to tell them apart by looking. I want to compare the dimensions

Throttle body size
Plenum volume
runner volume
runner length
what the different flow numbers are.

thanks
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Old Jan 21, 2009 | 07:13 PM
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throttle body size is the same for both intakes.. not sure bout the others though so i'll let the experts tell you bout those..
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Old Jan 21, 2009 | 08:14 PM
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tb is the same, runners are the same, but the mass inside the intake is larger. meaning more air. if you look at a pic of both of their bottoms then you'll understand.
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Old Jan 21, 2009 | 09:19 PM
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Throttle body size - same
Plenum volume - larger
runner volume - same
runner length - same

doesnt sound like it would make much of a power difference, but trust me, there is
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Old Jan 21, 2009 | 09:27 PM
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also different casting pattern to the ribs on the bottom

the obvious differences are lower floor section and no EGR provision on the LS6
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Old Jan 21, 2009 | 10:33 PM
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anybody got a back to back dyno of a ls1-ls6 manifold swap? i've seen it before i know theres atleast one floating around here
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Old Jan 21, 2009 | 11:18 PM
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just do a search in the dyno section hundreds out there
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Old Jan 22, 2009 | 07:59 AM
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Originally Posted by noriceinside
Throttle body size - same
Plenum volume - larger
runner volume - same
runner length - same

doesnt sound like it would make much of a power difference, but trust me, there is
this is what I found
_______________ls1_____ls6
Plenum volume - 5.06L--5.19L
runner volume --.536L--.541L
runner length ---262mm-262mm

I am not sure of the TB opening, so if anyone has a LS6 lying around and would like to measure it that would be great. I have a LS1 and i will try to do that tonight.
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Old Jan 22, 2009 | 03:56 PM
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pretty sure the TB size is the same
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Old Jan 22, 2009 | 04:23 PM
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A ls6 good for about 10-15rwhp over a ls1 at 5-6K rpm's.
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Old Feb 2, 2009 | 05:04 PM
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what about the throttle body it self..any difference between the ls1 and ls6?
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Old Feb 2, 2009 | 07:03 PM
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Originally Posted by utahws6
what about the throttle body it self..any difference between the ls1 and ls6?
exact same
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Old Feb 2, 2009 | 07:57 PM
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I think there was a post a short while ago about how the LS6 doesn't leak as much as the LS1 but that may have been an LS6 to LS2 comparison...
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Old Sep 20, 2009 | 07:34 PM
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Default ls6 intake

i have a 1998 camaro z28 auto stock form for now but have a chance to pick one up for pretty cheap i am saving money for the texas speed 2.5 head and cam kit and some other mods but how far can you really go with an ls6 intake is my question
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Old Sep 20, 2009 | 07:40 PM
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Originally Posted by I_wanna_gofast_ss
i have a 1998 camaro z28 auto stock form for now but have a chance to pick one up for pretty cheap i am saving money for the texas speed 2.5 head and cam kit and some other mods but how far can you really go with an ls6 intake is my question
ls6 intake will support 500+bhp
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Old May 22, 2010 | 10:20 PM
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I think it helps but its not seat of your pants
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