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Inlet diameter LS6 intake manifold.

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Old 10-01-2012, 03:30 PM
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Default Inlet diameter LS6 intake manifold.

What is the inlet diameter size on a LS6 intake manifold? will a fast 92mm throttle body fit on the LS6 intake? how much power is a LS6 intake good for?
Old 10-01-2012, 03:33 PM
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An 01 Trans Am comes with LS6 intake manifold right?
Old 10-01-2012, 03:35 PM
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Originally Posted by D14HUGGER.ORANGE
What is the inlet diameter size on a LS6 intake manifold? will a fast 92mm throttle body fit on the LS6 intake? how much power is a LS6 intake good for?
Not without an adapter. Stick with stock ported/polished TB

Originally Posted by D14HUGGER.ORANGE
An 01 Trans Am comes with LS6 intake manifold right?
Yes.
Old 10-01-2012, 04:03 PM
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It's about 78-80mm. Most any of the aftermarket 90 and 92mm TB's will be the 4-bolt pattern, whereas yours is the older 3-bolt pattern for mounting. I'd either have the stock TB ported, or save my money and get into the FAST 92mm intake and TB when I could.
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Old 10-01-2012, 04:10 PM
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Well this build question is regards to my cousins trans am. He bought a FAST 102 intake and 92mm TB. But his trans am aready has a LS6 intake so I was thinking since the LS6 manifold is good for 400+hp. Just swap out the TB on the LS6 and call it good, and sell the fast intake and get headers and exhaust since hes on a budget build. He plans on eventually doing cAm swap later. What do yall think???
Old 10-01-2012, 04:12 PM
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Who can port the stock TB and how much does it run? Can I port it myself?
Old 10-01-2012, 04:15 PM
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You can get adapter for it? Suggestions where? Because he aready had bought the FAST Tb
Old 10-01-2012, 06:40 PM
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Figured it out Throttle Body adapter made by CBM part number 10709
Old 10-02-2012, 04:32 PM
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Originally Posted by D14HUGGER.ORANGE
Who can port the stock TB and how much does it run? Can I port it myself?
You can do it. There is a DIY tutorial, just google it.
Old 10-03-2012, 04:09 AM
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You will see little to no gains from a 92mm tb on an ls6 intake, you might even see a loss. The intake will only flow what it can, increasing tb size on an intake that is typically maxed out on a small cam, mild heads 346 is not going to make it flow any more.

If your going to sell the 102 intake, sell the tb with it. It's pointless.



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