LS1 Injectors in an LT1?
the Ls1 inj. do run at a higher fuel psi (50-55) but that is not a big deal either.
I am unaware of this being a popular mod with the Impala guys.
I also believe the LS1 injectors are shorter than the LT1, I can go out to the garage and double check.
I put some 32lbs LS1 injectors on my car because I got them dirt cheap and traded some parts for an adjustable regulator so I could turn up the pressure, currently running them about 50psi/30lbs. I stumbled on cheap and traded parts and made this work, that does NOT mean I recommend others go about it the same way. If the bank account were a little fatter I would probably buy some new matched injectors from Racetronix and put a new stock regulator back on it.
The injector size rating really needs to be considered with pressure. The SVOs are rated at 39psi so they act a little bigger in an LT1 application with stock LT1 pressure. 30lbs act like 31.7 if memory serves.





