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TB identification

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Old 05-16-2018, 04:19 PM
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Default TB identification




This TB is off my 2009 Sierra Denali. I am trying to identify the size of it but can’t get any luck with the part number off it.
PN: RME87-3B1387. Can anyone give me more info on this?
Old 05-16-2018, 04:27 PM
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It should be 87mm like you have with the tool there.

The NNBS and TBSS intakes are like 90mm openings.
Old 05-16-2018, 04:32 PM
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Okay here isn’t my next question would a 90mm LS3 TB work on my whipple intake??
Old 05-18-2018, 10:16 AM
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Default 90 mm t/b

I run a Camaro LS3 90mm on my 2011 6.2
truck int. no prob
Old 05-18-2018, 11:23 AM
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Yes it will work. The throttle blade does not cross the intake plenum at its widest point which is where the shaft is.
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