Fueling & Injection - Anyone knowledgable on LS injector adapters?

I need some terminology on the names of factory LS injectors plugs

I have a 2000 silverado & the plugs are the small ones that take a grey plastic pin lock that clips on after u snap on the plug 2 the injector???

Now im installing a LS3 engine & using a factory Denali truck intake, what kind of injectors are these??? And are these different than a LS3 injector plug wise?

Someone explain the delphi,EV1,EV6 plugs and tell me what i need for my swap! Thanks

EV6 is the LS3 injectors.
LS1/LS6 are the EV1's (might be other what you have now not sure.)

I just did 3 hours of research on this 2 days ago. lol

Not sure if this helps.

I think these are what you need. If not someone else can chime in.

http://www.corvetteinjectors.com/shop/viewitem.php?productid=251

Thanks for the info, im gonna check & see if the EV6 will work on the 6.2 truck intake...