throttle body sizes

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Aug 14, 2008 | 11:07 AM

low2001gmc

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From: Elsa, South Texas (956) 802-7700

throttle body sizes

i have heard 6.0s come with a 78mm tb and 4.8, 5.3 and 5.7s with 75mm. can anyone please shed some light on this and provide me and others some accurate info. pm with info please. thanx, rob.

Aug 14, 2008 | 12:33 PM

GMCtrk

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From: Dallas

I read another post on this. ALL truck TB's are the same, regardless of engine.

Aug 14, 2008 | 01:34 PM

Tootall

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From: League City, Tx

the SSR, and the TB SS have 90mm intake/TB,
the new 08s have 90mm
everything 07 and back has 78mm, reguardless engine size
on the 8.1s, and diesels I have no idea

please correct me if I'm wrong