Hi

I have a 1999 mondeo with 1.6 Zetec engine, the one with the black plastic rocker cover.

The cam belt has gone so I'm looking for a secondhand head.

Question is, and I have had lts of different contradicting answers to these:

1. Are all 1.6 and 1.8 Zetec heads from escorts, mondeos and Focus interchangeable?

2. Can I put an 1.8 head on my 1.6 block?

3. Can I use a head with an aluminium rocker cover to replace my head with a black plastic cover?

Thanks all for any advise