I was wondering what the differences are between the SVT 2.0 and a base Zetec 2.0.Are the cyl. heads the same?Same valves and springs?Does the SVT have more agressive cams?Is the block the same?Are the pistons forged?The Crank forged?Better rods?I realize the intake and exhaust are different as is the tune.I know where there is a complete '04 svt with low miles hit in the nose (totalled/salvage,motor runs)and was wondering if it would be worth buying to upgrade my driveline as my motor is approaching 110k miles (still strong as day one!) BUT... I want a blower. An SE with an SVT motor would be nice...then add the blower...just don't know if it's worth paying more for an SVT motor.