Most manufacturers would design their engines to be unique, they make have same size engines but will have different specs. This is so people would by the same brands for parts.

It would not hurt to try it on, if you have them on hand.

To be honest, I am not sure what you are trying to accomplish here.

Are you trying to convert a non ps to a ps, or just trying to replace a ps from different engine? Which other engine are you taking the other backplate from?