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No you need to use LS1 rails with an LS1 manifold You can use the LS2 injectors but you need a spacer kit as they are much shorter. I have them in stock.
Thanks for the help but I guess I'm a little confused. Why would you need spacers to run shorter injectors, seems like it would be the other way. Do have any pics?
LS1 injectors are taller than your LS2 inj. you need an injector spacer. It fits in the inj and then the intake and makes the LS2 just as tall as the LS1.
Oh I thought you meant spacers on the fuel rails. Makes sense now. I guess the easiest thing for me would be putting new pig tails on the harness and running the LS1 injectors. Thanks so much for your help!