Basically i have a mk3 fiesta that is in need of a new engine. I was reading fast ford this month and have seen an rs2000 running at 301bhp with a 2.3 ford galaxy bottom end. My fiesta is an rs1800 so has the 1.8 zetec engine. My plan was intially to drop in a 2 litre zetec then run it on 45mm carbs.

I have a few questions.

Is the 2.3 ford galaxy engine a zetec engine? I ask this as the car is essentially a sister model to the vw sharon except the vw doesnt use a 2.3 in the range.

Will this engine drop into the fiesta without the mounts needing modifying? or will the old galaxy mounts fit?

Will this fit the ib5 box in the fiesta or will i need to change bits over just like when you do a 2 litre conversion i.e. changing sump and oil pick up? Will the 1.8 sump and that still fit?

Would it be easier to just bore out the 2 litre to a 2.1 or is it not worth the extra expense?

Any Tips or Advice is appreciated. Please make constructive comments.