swapin a 4.8 for a 5.3 or 6.0

i was wantin to knw if you can throw a 5.3 or a 6.0 into a truck that has a 4.8? what would i need to do and etc????

a 5.3 shouldn't be much hassle...not sure about the 6.0. I know swappin a 4.3 for a 4.8 sure is a pain in the you know what though. :banghead: worth it though