BIL N KEL

Hi the Cambelt has just snapped on my brothers rs turbo. It's running a 2.1 Zetec bottom end with calibra turbo pistons. The head is according to the paper work is a stg3 efi head but I've not got it off yet to check this.

I have a couple of questions

Would it have bent any valves when the belt snapped?

What size are standard valves?

If they are larger valves where could I get them?

How would I go about converting it back to a full Zetec? It's in a fiesta so would the efi manifold bolt straight up?

Any help much appreciated
Billy