Nothing special, just be sure it comes with the injectors. Swap engines and order an tune for your truck converted to 6L. Be sure to give the PN on the injector to your tuner so he'll know what size you're running. All parts that are on your 4.8L will transfer over to the 6L, even the intake and exhaust. I find its usually easier to swap the whole intake over from the 4.8 to the 6L than it is to swap parts. You will have to pull the fuel rail off and swap the injectors but thats so simple even a caveman can do it.