I was reading about this engine in motor trend and I have to give kudos to ford. It's a 3.5L twin turbo'ed 6 cyl making 365hp and 420 lb-ft torque and still gets the same MPG as the 5vz (18 mix, 15 city 21 highway). My next thought was, how sick would that be in our little 1st gens! Apparently it weighs 450lbs, so right around the same weight as the taco v6 engine.
Maybe after I SC my engine, and then beat it to 600k miles, one of these engines will be cheap enough used to replace when the time comes.