Fitting a blacktop into a erst

Few questions

Black top heads are they the same between 1.8/2.0 as people advertise them as they are the same?

The black top mondeo/focus rs Inlet manifolds again are 1800 inlets the same as 2000 inlets

I'm running a st170 bottom end has anyone got any pictures of the idler pulley mod?

I have a converted silvertop engine mount will that fit the blacktop?