I have a set of 2002 ls1 fbody injectors laying around and a scrap ls1 harness. Would it be for any benefit to swap to these injectors? I have a walbro 255 pump, s&p headers, dual exhaust, and custom cai, with a custom tune...on a 2002 5.3

Also if it is worth it, is al i need the injector wire pigtails? I was looking at the truck inj. versus the ls1 inj. and it seems the ls1 ones are taller...

What do you guys think?

 

I think the injectors maybe the same, flow wise anyways. I'm not sure you'd gain much or anything for that matter, but I may be wrong....maybe others will chime in that know specifics.

 

t t t

 

I wouldn't bother swapping them in. If you get to the point you need bigger injectors you can always step up to the 44lb/hr(59psi) Multec II's which are a direct plug in.

The "LS1" style injectors require more work than just swapping pig tails. I did a write up on how to swap them in at the link below. Don't worry about swapping until you exceed the limits of the direct style plug ins IMHO.

http://hauln.net/LS1Tech/truck/fuel_injector/index.html

 

Just find you some some 8.1 31lb/hr injectors if you want.

Youd also have to shim up your fuel rails for the LS1 jectors, they are longer.

 

yeah i noticed that when i was comparing. Thanks for the replies guys.

 

If you need some 8.1 injectors I have a full set. PM me.

 

By the way great write up(not that I ahvent told you that before) if only all the write ups were like!