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which is better. ls2 or ls6?

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Old Jul 8, 2009 | 11:37 PM
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Default which is better. ls2 or ls6?

just was curious cause a buddy of mine says the ls6 intake is the same as an ls2 intake. no point in getting the ls2 intake, blah blah blah. someone please explain the differences of the two.

Last edited by SSIRBY; Jul 9, 2009 at 05:19 AM.
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Old Jul 9, 2009 | 01:03 AM
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wow, he is way off. first off, the ls2 displaces 6 liters and was rated at about 400hp. the ls6 is 5.7 liters and is basically a ls1 with different heads cam and intake. not sure bout all the ls6's, but they had 28x reluctor wheels and the ls2 is a 58x. a few other differences to include location of knock sensors and i believe the valley cover was different. i'm no expert and def don't know all the differences, but these are the few that i know of. just remembered, they had the same heads.
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Old Jul 9, 2009 | 02:43 AM
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really. i am definately a noob to ls series engines but i thought the ls6 was a 6.0l displacement as well. but apparently i am wrong. so guess i have to cancel my 50mile drive on going and getting this ls6 when i really want an ls2
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Old Jul 9, 2009 | 03:12 AM
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Not all LS2's are 58x, when they began on the LS2 is hard to track. The best way to tell is by the color of the connector on the front cover for the cam sensor or the obvious, count the teeth on the reluctor wheel. I can't remember what's the color right now but there are plenty of venders and people here that can give the exact specifics on the connector.
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Old Jul 9, 2009 | 05:18 AM
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holy crap. my bad guys. i meant, is an ls6 intake better than a ls2 intake. i wasnt clear on that.
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Old Jul 9, 2009 | 06:50 AM
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ls2 intake takes 90mm tb, ls6 does not unless sent to tpis for modding. the ls2 stock is below the ls6. some say when the ls2 is ported by somebody decent it can be even or slightly better than a stock ls6. in my opinion it would be an ls6 unless i was going to a fast92
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Old Jul 9, 2009 | 07:19 AM
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oh, well if you're talking intake then stock for stock the ls6 is better
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Old Jul 9, 2009 | 09:36 AM
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ok, well i guess he's right on something.
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Old Jul 9, 2009 | 02:37 PM
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Originally Posted by SSIRBY
ok, well i guess he's right on something.
Not if he is saying the two intakes are the same. The LS6 out preforms the LS2 in stock forms. If you were thinking of swapping to an LS2 for your car it would be a downgrade yes.
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Old Jul 9, 2009 | 05:47 PM
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Originally Posted by SSIRBY
holy crap. my bad guys. i meant, is an ls6 intake better than a ls2 intake. i wasnt clear on that.
i was wondering how someone with over 300 posts and a car that put down that much power didn't know the differences between the two engines lol. i guess my first post kinda makes me look like i can't read now!!!
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Old Jul 9, 2009 | 09:08 PM
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I believe 2005 and prior LS2's are 24X reluctor's.
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Old Jul 9, 2009 | 09:42 PM
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is this is an intake question? and i will be the one to say search is your friend. also the ls6 will outflow the ls2.

Last edited by bigti99a; Jul 9, 2009 at 09:56 PM.
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Old Jul 9, 2009 | 10:35 PM
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i'd rather just get opinions than just search.
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Old Jul 9, 2009 | 10:37 PM
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Originally Posted by jason00ss
i was wondering how someone with over 300 posts and a car that put down that much power didn't know the differences between the two engines lol. i guess my first post kinda makes me look like i can't read now!!!
haha. naw i know an ls2 engine is better than an ls6. i just forgot to say intake and it made it sound like i was talking about motors.
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Old Jul 9, 2009 | 10:44 PM
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it would be great if TSP did a LS intake test comparison.
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Old Jul 10, 2009 | 08:51 AM
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ls2 400hp ls6 405
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Old Jul 10, 2009 | 09:46 AM
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Originally Posted by SSIRBY
holy crap. my bad guys. i meant, is an ls6 intake better than a ls2 intake. i wasnt clear on that.
Simple answer is yes it is and back to back dyno test have been done to show it.

Click on the following links for some comparisons.

http://www.vetteweb.com/tech/vemp_06...tor/index.html
http://www.vetteweb.com/tech/vemp_06.../photo_13.html
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