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Discussion Starter #1
Anyone know what size throttle body is on the stock Gen 1 lightning gt 40 intake. Any factory tech. info.

Thanks.
 

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Accused Resto Nazi
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303 Posts
If I'm not mistaken, the OE TB is 65mm. However, the upper's TB opening is actually 70mm and therefore a 70mm TB can be used with neither the upper nor the TB needing any modification.
 

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Spanking Viper Trucks
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2,115 Posts
If I'm not mistaken, the OE TB is 65mm. However, the upper's TB opening is actually 70mm and therefore a 70mm TB can be used with neither the upper nor the TB needing any modification.
That would be correct.:bigtu
 

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1800GotGnomes
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3,150 Posts
If I'm not mistaken, the OE TB is 65mm. However, the upper's TB opening is actually 70mm and therefore a 70mm TB can be used with neither the upper nor the TB needing any modification.

Do you need a tune for a Bigger TB?
Won't you lean her out with more air coming in?
 
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