Ford racing use to make many things for the Zetec... since its a motor that has been discontinued for the last 7 some years they have slowly been reducing their inventory and just selling out of their stock with out replenishing. That's what happened with the Ford Racing SVT Header that came with an EGR bung. They no longer sell it so you have to find a used one or make one. Same with the Ford Racing Head. Have to find it used.
Their are other sponsors of this site that also offer head's worked to various levels.
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)