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Can a stock throttle body be used on a 90mm LSX?

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Old 07-20-2004, 03:03 AM
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Default Can a stock throttle body be used on a 90mm LSX?

Im buying the 90 mm version just incase I need to go larger in the future, however I really dont want to buy the 90mm TB as I have no use for the flow... will the stock throttle body bolt up to the 90 or will I have to build an adapter plate? Or does anyone have a piece that will fit it?
Old 07-20-2004, 03:22 AM
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No it won't bolt up, you would have to make a adapter plate.
Old 07-20-2004, 03:30 AM
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Originally Posted by smokin' joe 00 ss
No it won't bolt up, you would have to make a adapter plate.
have any close up pics of a 90 vs a 78 mm by any chance?
Or anyone know the difference flow wise between the two? I have just heard that no one has the TBs fitting well yet...

And if any sponsors are reading this, I need a LSX, fuel rails and possibly a TB and TNT, NX or NOS direct port kit minus bottle in the next couple days

Last edited by SSOnYourSix; 07-20-2004 at 03:38 AM.
Old 07-20-2004, 04:48 PM
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Originally Posted by SSOnYourSix
have any close up pics of a 90 vs a 78 mm by any chance?
Or anyone know the difference flow wise between the two? I have just heard that no one has the TBs fitting well yet...

And if any sponsors are reading this, I need a LSX, fuel rails and possibly a TB and TNT, NX or NOS direct port kit minus bottle in the next couple days

LSX 90 vs LS6


90 vs Stock vs ported stock

Old 07-20-2004, 07:00 PM
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hm.... looks like a project to make that work...

anyone know if the FAST TBs had their fitment issues fixed yet ?




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