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Old Oct 24, 2007 | 10:21 PM
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From: Jefferson Ga
Default 80mm Tb

Is the gains any more than a stock TB that has been ported? Especially considering the amount of money you would spend on one?
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Old Oct 24, 2007 | 11:08 PM
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No the inlet of the Intake is only 78mm I want to say...
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Old Oct 24, 2007 | 11:12 PM
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just get ur tb ported it cheap and there like 2 hp difference
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Old Oct 24, 2007 | 11:57 PM
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Supposedly the 6.0L truck LQ4 80mm will work, but I've never heard of anyone using it. I would imagine that you could find one for next to nothing if you look around.

It shouldn't have the issues that some of the aftermarket throttlebodies have had with coolant, air leaks, or idle problems.
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Old Oct 25, 2007 | 01:02 AM
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Originally Posted by whs
Supposedly the 6.0L truck LQ4 80mm will work, but I've never heard of anyone using it.
Thats because there is no 80mm truck tb. All of gm's cable driven ls based tb's are all 75mm units and basically share the same housing. As far as hp gains, i have ssen people gain a couple hp over an aftermarket 80mm. Now if that aftermarket 80mm was ported it would make more power than a stock tb. But its really not worth it to pay for a 80mm unit.
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