I've read conflicting notes in this forum. One said that all LS motors except the 5.3 will work.

I'm looking to put a 5.3 into a 95 1/2 ton GMC and am wondering if the t56 is possible.

Also, what is the best year (easiest to swap) of the 99-05 5.3 to buy with all wiring and accessories? Throttle cable vs. drive by wire etc...

Any help is much appreciated.