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DBW Throttle Body ?'s

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Old 01-11-2008, 09:23 AM
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Default 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?
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Old 01-11-2008, 09:38 AM
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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.
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Old 01-11-2008, 10:16 AM
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Yeah, the NNBS are the same 4 bolt design as the LS2 and now they are 87MM
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Old 01-11-2008, 10:39 AM
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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?
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Old 01-11-2008, 02:53 PM
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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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