I got a Holley hi ram I just put on my 408 stroker with ported ls3 heads I went to put my fic 1000cc ls3 injectors in it and they're way too short to bolt the rails on even on the bottom bolt hole. So I called fic and they sold me some 1" spacers that they said will take the ls3 injectors to ls1 length so the rails will bolt to the hi ram. Got them on and they work but you can push the injector down into the manifold and can see the o ring at the fuel rail and don't feel comfortable with that... is this ok or should I send these spacers back and spend the $140 on the ls3 injector adapter from Holley to move the bolting point down. Anyone else running ls3 length injectors on a hi ram?! Thanks!


This is with the injector all the way in the spacer and the spacer pushed all the way in the rail but afraid the pressure with push it down into the manifold all the way when I prime it and leak...



This is with the injector pushed all the way in the manifold unclipped to the spacer the o ring is barely touching the rail will definitely leak...



This is with the spacer clipped onto the injector and pushed all the way into the manifold. Can see the o ring might seal but not positive...

 

Well if anyone was interested in this fuel injector connection makes little spacer seats for the ls3 injector so it seats like a ls1 style. Makes the ls3 injector work with the hi ram. Great company to work with!

 

Where did you get the seats for the spacers and do you have a link for them?

 

Slow down a sec bud, it says he contacted Fuel Injector Connection right in the post. You may need to contact them directly.

 

 

My ls3 injectors worked fine in my hi ram with no spacer and used the bottom hole. My ls9 would all drop and leak like crazy so I got some 1" ict billet spacers and it works great.

 

What injectors are supposed to be used in the hi-ram? LS1 length?

 

I did look on their website and didn't see them, that's why I was asking him.