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Old 02-08-2007, 11:19 AM
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Default LS2 Manifold

hey i was just wondering... wouldnt a LS2 manifold and TB bolt right up to my 408?? im looking for a cheaper upgrade than a FAST and that way ill also have the 90MM throttle body.

is it possible? they used the LS6 heads on the LS2's right? so id think it would work?
Old 02-08-2007, 11:33 AM
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It would bolt right up to your heads, however you will also need to get the matching fuel rails. I would also suggest porting the intake, from reading some of the other threads about this subject. They were showing HP loss between the stock LS6 and then going to the stock LS2. After they ported the LS2 intake then they were finding their gains. You might also check into TPIS's LS6 int. converted to accept a large oval TB as a reasonable alternative for your project.
Old 02-08-2007, 11:40 AM
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Originally Posted by 1997bird
It would bolt right up to your heads, however you will also need to get the matching fuel rails. I would also suggest porting the intake, from reading some of the other threads about this subject. They were showing HP loss between the stock LS6 and then going to the stock LS2. After they ported the LS2 intake then they were finding their gains. You might also check into TPIS's LS6 int. converted to accept a large oval TB as a reasonable alternative for your project.

link plz? never heard of that
Old 02-08-2007, 12:21 PM
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http://www.tpis.com/index.php?module...ake+Components


Now for that finders fee you promissed!

Sorry the links didn't post properly. You will have to just page over until you find the parts I was telling you about.
Old 02-08-2007, 12:31 PM
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Originally Posted by 1997bird
http://www.tpis.com/index.php?module...ake+Components


Now for that finders fee you promissed!

Sorry the links didn't post properly. You will have to just page over until you find the parts I was telling you about.

found em, good lord thats PRICY
Old 02-08-2007, 12:41 PM
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It'll work but not worth it on a N/A car. And as stated above the fuel rails will need to be switched.
Old 02-08-2007, 01:22 PM
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Originally Posted by LostCauseZ06
found em, good lord thats PRICY
Its cheaper than a FAST 90/90. Do you already have a LS6 intake? If you do then the new intake w/exchange is $350 and the TB is $500. If you price the LS2 intake w/TB, wiring harness adaptor for the LS1 to LS2(www.GMCOPO.com), and fuel rails I think that you will be the same or more for brand new parts.




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