LS1 and LQ4 injectors the same?
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No, the truck injectors are shorter and have a diff. plug. Don't know what combo you have but most people use the 8.1L truck (30lbs) or the 8.1 marine (42lbs I think they are). You can use the car injectors but you'll have to space the rail up and change all the plugs, really not worth the trouble.
Brett
Brett