That I'm not sure of, I'm not too fussed what car the floorpan comes from as long as it shares the mounting points of an Escort RS Cosworth, I'd be happy with an early XR4x4 provided the shell is in good condition. If you know much about them I have a thread in Technical help Q & A pages you could have a look at and maybe share some advice.

https://passionford.com/forum/techni...onversion.html