Terry,
Wouldn't it make sense on a 3.0 L conversion to use the 3.0 heads with their larger heads and ports as a starting point for a port and polish job? Don't forget that the 2001 Taurus/Sable/Escape have the same water pump drive off the back of the head as the 2.5 does.
If available, the SVT cams would of course be preferred.
