You already have the majority of the parts lol

Not sure what you will need to do with pistons as i don't know how different the combustion chamber volume is between cvh (specifically your head) and zetec. Gary above should be able to fill you in about that..

Your mount is adapted, you have an oil drain etcetc, and i assume you are on efi?

So if compression ratios are no problem you should essentially be able to swap heads along with cam belt tensioner, water pump etc and be away.

Rob,