Not sure on the LS1 in perticular but I do know that GM injectors do work on the 5.0 and vice versa. My buddy pulled it off with his camaro. I do believe only one problem someone had i believe with the fox was he had to grind a bit off something (very little) to get them to bolt down or something. I know they did it I just have to ask him tomorrow. I would be more then glad to let you know tomorrow.