whats the difference between a N/A cvh engine and a fiesta rs turbo engine?

i know the pistons are different, any thing else? crank? rods?

thanks for any help, trying to rebuild an engine from stratch, but having problems getting hold of a defo good fiesta turbo bottom end. and am basically hoping you can use any cvh bottom end, just change the pistons.

 

The turbo'ed CVH engine is low commpression and the normally aspirated CVH is high commpression.
Paul

 

Just change the pistons. Nothing very interesting otherwise. Pistons rings, gudgeon pins, oil return and big-end bearings are some of the minor changes.

 

blocks are exaclty the same arent they.


may asweel do a zvh or zetec turbo if your going to the trouble of building one from scratch

 

basic casting of the block is the same but they have differences.

I can quickly see this turning into another CVH vs ZVH/Zetec battle