Anybody running 4.8 or 5.3 GM Vortec ? I'm curious as to how they're holding up. I'm running a 2002 Chevy with the old unbreakable 350 motor....almost time for a new one. I've ruled out a Sprinter due to overwhelming problems experienced. I like Chevys over Fords but the new line of engines has me concerned, not for any specific reason other than that they're new. Any help is appreciated.
