Well, I guess everything would be fun, from the heads on down. I get nervous about alum engines and the inserts, sleeves, bearings, etc. I guess nobody has worked the Duratec that way yet. A FWD car kinda makes tinkering with internals a lot more interesting, true. I have to hand it to Ford on this one, it's hard to improve on a tuned engine (esp the great intake!). But I wonder if higher compression or more cc's wouldn't get another dozen+ HP at least, esp with proper balancing. Maybe I'm fishing for deer here, lemme know. I would rather tear down a motor at 50k and make it worth another 50 than watch it fail in a catastrophic way at 80k. The 2.5 is a great plant, and nobody offers heads better than what the SVT's came with. Darn. It's easier to bolt on heads than to get into the guts! Maybe I should bolt a 4cyl into the trunk and put an Auburn diff on the rear wheels...hehe. No, wait, I still need to replace the water pump, right?
