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01-02 ls6 Intake Manifold

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Old Mar 6, 2005 | 03:24 PM
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Default 01-02 ls6 Intake Manifold

The search button is working, so I'll start a thread. Okay, so I think I'm right, but correct me if I'm wrong. Some '01's have ls6 int. manifolds, all '02 have them. How can I tell if the '01 has it. And how important is it, performance wise. A little extra horsepower, or is it significant. The reason why I'm asking is because I'm looking at two WS6's right now, an '01 with 4,500 miles for $22.5K. and an '02 with 12K miles for $23.5K. Now I know I can talk them down, so the price for the car isn't the issue, it's going to be the performance. Any help would be appreciated.
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Old Mar 6, 2005 | 03:29 PM
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all 01/02's have it. its flat on the bottom and has no EGR provision.
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Old Mar 6, 2005 | 03:39 PM
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Originally Posted by nspr8td lt1
all 01/02's have it. its flat on the bottom and has no EGR provision.
Alrirght, thanks man. I'll go with the '01 then.
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Old Mar 6, 2005 | 03:47 PM
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Originally Posted by 99BLACKBIRD
Alrirght, thanks man. I'll go with the '01 then.
Yeah, all '01s and '02s have the ls6 intake, as mentioned above.
Rumor has it that some '02 blocks may be ls6 blocks, but I wouldn't put much emphasis on that. You'll be fine with either purchase.
Have fun!
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Old Mar 6, 2005 | 03:54 PM
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Originally Posted by SouthFL.02.SS
Yeah, all '01s and '02s have the ls6 intake, as mentioned above.
Rumor has it that some '02 blocks may be ls6 blocks, but I wouldn't put much emphasis on that. You'll be fine with either purchase.
Have fun!
yea some do have it, but it only affects oil flow and shouldnt be considered as a power difference.

goodluck.
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Old Mar 6, 2005 | 04:00 PM
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Originally Posted by nspr8td lt1
yea some do have it, but it only affects oil flow and shouldnt be considered as a power difference.

goodluck.

Yeah, ported oil passages in the block bulkheads.... nice, but nothing worth altering a decision between one or the other.
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Old Mar 6, 2005 | 05:41 PM
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actually, there are bigger more refined "windows" in the crankcase bulkheads for better breathing between cylinder bays, at high rpm's this would equate to better windage control/balance in the crankcase.......and it does have a performance advantage
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Old Mar 6, 2005 | 05:43 PM
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Originally Posted by SouthFL.02.SS
Yeah, all '01s and '02s have the ls6 intake, as mentioned above.
Rumor has it that some '02 blocks may be ls6 blocks, but I wouldn't put much emphasis on that. You'll be fine with either purchase.
Have fun!
Some '01's have it too, mine does (25% of '02s & 10% '01s) but yeah doesn't make a difference powerwise, I've also heard LS1 blocks are better for modding because of the extra material??
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Old Mar 6, 2005 | 07:28 PM
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How much more power does the ls6 intake have over the ls1?
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Old Mar 6, 2005 | 07:51 PM
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Originally Posted by 99BLACKBIRD
How much more power does the ls6 intake have over the ls1?
10-15rwhp
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Old Mar 6, 2005 | 08:28 PM
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Originally Posted by SouthFL.02.SS
10-15rwhp
Damn, that's pretty impressive. Is that why they have 345hp rating on the '01-'02 Ws6 and SS?
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Old Mar 6, 2005 | 08:38 PM
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Originally Posted by 99BLACKBIRD
Damn, that's pretty impressive. Is that why they have 345hp rating on the '01-'02 Ws6 and SS?

No, the 345hp models had a high flo lid and freer flowing exhaust.
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Old Mar 6, 2005 | 08:59 PM
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Originally Posted by SouthFL.02.SS
No, the 345hp models had a high flo lid and freer flowing exhaust.
Is that with the help of SLP?
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Old Mar 6, 2005 | 09:39 PM
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Originally Posted by 99BLACKBIRD
Is that with the help of SLP?
That was one of their packages. Yes.
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