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Thread: Throttle body size
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11-18-2007, 05:06 PM #1
- Join Date
- Sep 2006
- Location
- Texas
- Posts
- 61
NBM- 2002 Trans Am WS6
Throttle body size
so, the 2002's had the LS6 intakes. i've read somewhere (tho i can't find it anymore) that the TB size is a 70mm, and the LS6 intake can take up to 75mm... anyone have info to confirm/deny this?
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11-18-2007, 08:31 PM #2
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11-19-2007, 02:36 AM #3
78mm Fits
Installed a LS6 on my 2000 and put on a FAST 78mm so it will fit.
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11-20-2007, 06:28 PM #4
- Join Date
- Apr 2007
- Location
- Arkansas
- Posts
- 24
What is a stock ls1 throttle body size?
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11-20-2007, 09:53 PM #5
What happens if you put on a fast 90/90? Will it still flow the same?
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11-21-2007, 07:57 AM #6
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11-22-2007, 05:27 PM #7
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11-22-2007, 05:51 PM #8
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12-03-2007, 06:31 AM #9
- Join Date
- Apr 2007
- Location
- Arkansas
- Posts
- 24
I have seen that the stock ls1 unported size is 71.5".
Ported is 75mm.
I need a confirmation.
Measure it at it's smallest opening, which I believe is the back.
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12-03-2007, 06:36 AM #10
- Join Date
- Aug 2005
- Location
- Commerce Ga
- Age
- 47
- Posts
- 4,994
Black, Blue- 07 TBSS, 07 GSXR1000
I had a BBK 80MM T/B on my stock LS1 intake. It comes with an adapter plate.
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