The teksid (93-99), wap (01-04) and aluminator (05-10) blocks can all be stroked to 5.0L..bored to 5.0L..or bored and stroked to 5.3L. The heads would need to be deshrouded for the larger bore.
Those three blocks are interchangable...with a slight water pump difference on the wap block..
I don't know about the aluminator block, but the Teksid and WAP can't just be bored over to hit 5.0L. At the very least the liners need to be replaced. And then if it's not done correctly it'll ruin the block. As I learned with my first big bore Teksid. That's why they talk about the Darton set up for big bores.