[WSSix]

Which ever one is the most complete and is the best price. You're looking at 6.0 motors which can handle either Gen 3 or Gen 4 parts like the L92 heads. Once you start modifying, their differences stock kind of go out the window. I do prefer the Gen 3 motors though, LQ4/9, simply because they are easier to tune. Cam only engines can easily put 400 the the rear wheels. Dropping a stroker crank into one is a piece of cake. Then 500 rwhp becomes easy with heads added in there. If I ever do the LS swap, it'll be with a cast iron 6.0 engine. They are cheap and can make brutal power. The cost difference to save 100lbs with an aluminum block isn't justifiable to me. Don't sweat the little stuff and don't fall into the bigger is better mentality that's way too prevalent in the LS world.