View Full Version : Injector O-Rings

05-14-2012, 12:52 PM
I have an L76 intake manifold and FAST LSXR rails. What o-rings do I need?

All I know is that the top of the injector requires a smaller and need a larger at the intake manifold.

Running a set of 42# injectors off of my old LS1

oange ss
05-14-2012, 02:39 PM
call Fuel Injector Connection

06-05-2012, 07:28 AM
They said my injector o- rings should be fine but they dont seal tightly on the manifold side!?