LS1 vs LS6 Intake

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Jan 21, 2009 | 04:18 PM

itallian33

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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

Jan 21, 2009 | 07:13 PM

redbadss

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From: Oklahoma

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..

Jan 21, 2009 | 08:14 PM

twitchtwice

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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.

Jan 21, 2009 | 09:19 PM

noriceinside

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From: Valencia, CA

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

Jan 21, 2009 | 09:27 PM

nemss1

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From: Edmond, OK

also different casting pattern to the ribs on the bottom

the obvious differences are lower floor section and no EGR provision on the LS6

Jan 21, 2009 | 10:33 PM

twpetry

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From: Fredericksburg, VA

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

Jan 21, 2009 | 11:18 PM

52172

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just do a search in the dyno section hundreds out there

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Jan 22, 2009 | 03:56 PM

nemss1

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From: Edmond, OK

pretty sure the TB size is the same

Jan 22, 2009 | 04:23 PM

#10

99_Z28

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A ls6 good for about 10-15rwhp over a ls1 at 5-6K rpm's.

Feb 2, 2009 | 05:04 PM

#11

utahws6

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what about the throttle body it self..any difference between the ls1 and ls6?

Feb 2, 2009 | 07:03 PM

#12

nemss1

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From: Edmond, OK

Quote:

Originally Posted by utahws6

what about the throttle body it self..any difference between the ls1 and ls6?

exact same

Feb 2, 2009 | 07:57 PM

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Bouvs

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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...

Sep 20, 2009 | 07:34 PM

#14

I_wanna_gofast_ss

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From: glass city

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