Anyone know the injector size on 08 Sierra 5.3L

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Jan 30, 2009 | 03:28 PM

CalSpeedPerformance

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From: Bakersfield, CA

Anyone know the injector size on 08 Sierra 5.3L

Trying to track down info on stock injector size on 5.3L NNBS 08 Sierra

I just finished heads/cam/headers/etc on it and Ive got some 33lb GTO LS2 injectors that I am going to swap in if the stocks are smaller.

Jan 30, 2009 | 03:48 PM

schino

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From: flemington nj

not sure of exact size. im sure someone will chime in but if its flex fuel i believe they are bigger then the non flex motor

Jan 30, 2009 | 09:34 PM

JB1

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From: Houston, TX

if you have a flex engine, the injectors are allready 32lb IIRC

Jan 31, 2009 | 01:22 AM

RickLowpez

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From: Wasco, Cali

so if no flex fuel just regular what would be the injectors?

Jan 31, 2009 | 01:37 AM

shupe

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From: NW Arkansas

Check this thread: https://www.performancetrucks.net/fo...=432117&page=2

From what i can tell standard 5.3 is 26 FF is 32

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