DBW Throttle Body ?'s

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Jan 11, 2008 | 09:23 AM

SlvrSierra4.8

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DBW Throttle Body ?'s

Are all 03+ DBW truck throttle bodies the same size? 78mm for the 4.8, 5.3, & 6.0? Also did GM change the size of the 07-08 NNBS throttle bodies on the 4.8,5.3,6.0 trucks?

Jan 11, 2008 | 09:38 AM

DRAENOR

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From: Scott, LA

From what I hear, yes. The throttle body was the same all the way to the 8.1L. I dont know about the NNBS ones.

Jan 11, 2008 | 10:16 AM

BLACKND

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From: Alvin,TX

Yeah, the NNBS are the same 4 bolt design as the LS2 and now they are 87MM

Jan 11, 2008 | 10:39 AM

SlvrSierra4.8

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Quote:

Originally Posted by L33Z71

Yeah, the NNBS are the same 4 bolt design as the LS2 and now they are 87MM

Is the maf 87mm as well?

Jan 11, 2008 | 02:53 PM

DrX

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Not sure about the NNBS MAFs, but I believe the old MAFs were 90mm with the 78mm TBs.

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