What fuel injectors are interchangeable in the LSX series engines?

I know LS1 and LS6 injectors are the same, but are LS7 and LS2, LS2 and LS1... Thanks

Also do you guys think a 42lb injector would be suffice for my engine? The tuner said that they were running at 95% with the stockers.

And what is the largest injector a stock fuel pump can feed?

 

The LS2 and LS7 are both totally different size and connectors. 42# is a little big for your setup but should tune fine and give you room to grow. If you do not plan much more power stick with a set of 30#ers. Your stock pump is maxed where you are I would look at replacing it as well.

Nate