In my youth I did manage to mate a Marina inline 1300cc 'A'series Engine to a Morris Minor 850cc gearbox. The local performance garage in leeds were well impressed when they finally believed me... I did only use 3 of the 6 bolts and a dowel to fix the moggy flywheel to the marina crank , but in my defence the original only had 4 bolts to start with.
It would beat an XR2 to 50 off the lights.. but did like to eat halfshafts for breakfast at least once a week:thumb2