102/3 Throttle Body for L83/6 motor

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09-14-2016, 11:17 AM

#11

KB Silverado

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Quote:

Originally Posted by rjw

close enough...I now have both....with digital calipers

5.3 is 79.25 w/ 10mm shaft (approx.)

6.2 is 86.75 w/ 12mm shaft (approx.)

Measurements taken at manifold end of tb's

thanks for the info. did you install the 6.2 TB on the 5.3? if so any issues other than tuning? I want to install one on my truck but wanted to make sure i have everything i need before i start tearing into it.

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09-14-2016, 12:24 PM

#12

rjw

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The whipple tb spacer is different. Changes to the tune are really simple. Just make sure that you know what vehicle the 6.2 tb comes from

Last edited by rjw; 09-14-2016 at 01:03 PM.

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09-14-2016, 05:15 PM

#13

07Softail

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The Truck L86 and Vette LT1 TB is the same part number.

RT

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09-14-2016, 11:52 PM

#14

rjw

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Quote:

Originally Posted by 07Softail

The Truck L86 and Vette LT1 TB is the same part number.

RT

In hp tuners, oem tunes, the truck tb has a max area of 4118 cc's whereas the 2014 vette lt1 has 4703.9, so I wouldn't necessarily be sure that they are the same???? but I am not an expert.

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