Will the truck injectors work in a LS6 manifold? I know the car injectors are taller, but is the bottom of the 2 the same? What is the difference?

 

They will work. You may have to swap the bottom O-ring, as the truck injector uses a thinner ring onthe bottom while the cars use the same top and bottom. You might also have a little issue getting a fuel rail to set perfectly on top. The truck fuel rail would look like crap. I'll dig up some pics I took in the past.

 

you'll have to cut down the rail mounting bosses and either re-use the threaded brass insets you cut off or find some new ones to thread the mounting bolts into.....when I did mine I cut the mounting bosses too short and then had to use spacers to allow the rails to mount at the right height. EVERYTIME someone askes me how to put an LS1/LS6 manifold on a truck I forget I had to do this step...so everyone that has asked me please forgive me for forgetting to tell you you have to cut the mouning bosses down and then space the rails back up

 

Yelo, is that step to reuse the truck fuel rail setup?

 

Yes.....

 

Thanks guys looks like its not gonna be that bad after all.