What would be the best fuel injectors for and 2001 ls 3600 3.4 can I use the 3800 series fuel injectors?

 

What's wrong with your stock injectors? the 3400 engine shouldn't have any problems dumping enough fuel.

 

x2

And just to help you clear up a few things, you have a 2001 LS 3400 (which is the 3.4 that you mentioned).

To be honest, I don't think there is much of a difference between the 3400 injectors and the 3800's. You see, the only time you really need anything other then stock injectors is when they are maxing out. An example of that is actually with my car. I installed a Novi 1k (which is a centrifugal supercharger) and installed a set of L67 injectors which are bigger then the 3800's. However, the L67 injectors in my car were at 110% cycle duty at 5500 rpms so we had to stop the dyno.

For your LS, the only time you will need to upgrade the injectors is probably going to happen if you install a power adder of some kind (turbo, supercharger, nitrous, etc).

 

ok I found a set of 3800 injectors one ebay for like 50.00 new but they told me those injectors would not fit the 3400 and Then I found out the 3400 injectors cost more so I called them up and they said the 3800 injectors were on sale for 40 bucks where as the 3400s cost 80 bucks SMH So can i just order the 3800s I've got a bad injector so i gotta do something now

 

Why not go to a junkyard? I'd imagine flow rates are different between the 3400 and 3800 injectors- so you couldn't just swap one, and you couldn't swap them all without tuning the pcm to adjust for the change.

 

i agre with bumpin it would not run right with out a tune it will nock one time anouther dump more fuel and create no spark. my question is are you doing upgrades as well when you do the injectors? or did you do upgrades and the injector got maxed and stoped working?