I plan on HAVING to change the engine. Yup, every time I build an engine, some knucklehead drives it like it was stolen, drives the pi$$ out of it. I am only putting the 4.8 because it was stinking cheap. My first preference is 5.3. But a 4.8 is not exactly a slouch, so it will do. Been reading up a bit on turbos. Maybe next year or next build....