4.8 to 6.0 oddball question help

[mopower440]

I have a 1999 silverado with the 4.8. I am swapping in a 2004 6.0 from a yukon. From what ive read, the 1999 injectors were oddball, then 2000-up used the same injectors on the 4.8, 5.3, and the 6.0. So im going to use the 2004 6.0 injectors, but, will my connectors on the 1999 plug into them or am i going to have to change them?
Thanks

[Blackpearl]

Plug and play, at least my 99 Silverado with a 04 6.0 motor did.

[George C]

yes 99 had smaller injectors, if your tossing in motor use the new injectors...if motor is modded then upgrade injectors

[mopower440]

Its a stock 2004 yukon 6.0. Ok, i HAVE to use my original 1999 4.8 intake, and your saying the 6.0 injectors are bigger, so will they have to be modded to fit into the old 4.8 intake or are they the same EXTERNALLY?

[George C]

that intakes should be the same minus a plug for the egr

[mopower440]

I thought the 2004 intake would be a returnless fuel style? I was told to use my original 4.8 intake because of this..? Is this not right?

[George C]

intake is and intake, you could swap the rails if you wanted to. the intakes are the same thou