TG02Z71

iTrader: (2)

I'm trying to sell the stock injectors from my truck.
Will these work as a direct upgrade for the "99-01"?
I know the injectors in the "99" were smaller but am unsure about the injector sizes and compatability to the "99-01" years.
Thanks guys.

1slow01Z71

iTrader: (36)

Yes they will fit thats what I am planning on doing with the ones that are laying in mjhowards garage that I jsut pulled last night. Those retaining clips on the injectors will **** you off and tear up your fingers

TG02Z71

iTrader: (2)

Mine actually came off with out incidnet, first timers luck I guess. One did go flying but it was found quickly.

1slow01Z71

iTrader: (36)

Mine came with new clips but they were just PITA to get off without breaking the damn injectors at least for me but it is quite possible I was doing it the hard way since I seem to do that all the time

budhayes3

iTrader: (19)

00-02 they'll be a direct replacement, 99 they'll be an upgrade, which will require PCM modification since they flow 21 lb/hr while 00-02 injectors flow 24.7 lb/hr. (the necessary pcm mods are as easy as copying and pasting the necessary info from a 00 and up PCM)

TG02Z71

iTrader: (2)

So what your saying is the "99" year is the only one with the 19.?lb injector?
Let me know I'm trying to sell mine and don't know if they are the same as his or an upgrade.
Thanks...Tim

budhayes3

iTrader: (19)

Yep, as far as I know, that is correct. 99 is the only year with the smaller injectors. 00 and up (to 02 at least, not sure about 03 and up) are all the same (4.8, 5.3, and 6.0)