I'm kind of lost in the area of engine swaps and upgrades and such, so I'm just trying to find out if the engine in the hyperlink below will be a fairly simple swap or not. Also, if I need to upgrade anything in the process. Truck is a single cab 08, currently has a 4.3 6 cylinder. Please don't reply if you're gonna tell me I'm wasting my time or gonna tell me to buy a new truck.

http://www.gmperformancemotor.com/parts/19258770.html