I have a 1999 silverado shortbed extended cab 4x4 with the stock 4.8, i want to swap in a 5.3 as PAINLESS as possible, meaning, without buying anymore than i have to for the swap besides the 5.3 engine. ok, being a 1999 model truck, do i need to find a 1999 model 5.3 or what all year 5.3's will go right in with no trouble? I know the newest 5.3's is out because they have the active fuel management, so what year 5.3 do i need to look for and does it matter if it is in a tahoe or whatever or does it need to come from a truck also? Next, what other things will i need from the donor truck besides the 5.3 engine? Can i just get the engine computer from any 5.3 truck or does it need to have come with the identical options my truck has?
Thanks all!