FAST 102 aftermarket Ls1 fuel rail?

[seweber]

I’m looking at replacing my intake on a heads / cam car Ls1. If I put a FAST 102 on the car I know I will need a different fuel rail if stock.
But the car already has an aftermarket billet style fuel rail not sure of the brand. Is it the crossover on the stock rail that gets in the way with the 102? Or can I use this billet fuel rail with stock Ls1 style injectors? thanks.

[SMWS6TA]

Yes the LS1 style crossover tube doesn't clear. LS2 will. You will also need spacers to use the LS1 style injectors.





Two more things on the wire harness for the injectors. On Num 7 & 8 cyl you may have to loosen up the loom in order for the harness to connect to the injectors.


And do you know you need to clearance the water pump if you are not using a LS2 water pump?

It's not much so be careful I had my pump off and used a grinder VERY LIGHT PASSES. Took about 4-5 tries till I got clearance for the NW102 throttle body to clear.






Hardest part was that bolt tab. It's not there for LS2 style pumps. If you get a LS2 water pump you need to transfer the something off the LSq1 style but I can't remember what exactly at this time.

[99ss405]

or you can do like me an redneck the ls1 rail to fit ... cut it ! I also use high temp engine paint to paint the fast intakes black !