What are the differences between the bottom end of the XR2i 8V and the FRST except from the engine code?

I know from ERST's of changed crankshaft bearings, other oil sump, oil feed for the turbo, other pistons...

But for the FRST?

 

Fiesta rs turbo and the escort rs turbo are the same bottom end's just the frst has a crank sensor fitted. The only thing the xr2i has that is the same as the frst is the crank sensor

 

But what about the oil feed for the turbo XR2i - FRST? And the sump? Main bearings?

 

All diffarent the xr2i is not low comp sump is the same and there's no oil cooler

 

cranks are different (same throw, but different profile around the journel) as are pistons, oil feed can be fitted or removed from any cvh
block has oil return in a frst xr2i doesnt
beleve shells are different like the rst

some other shite too no doubt