I just did this. The motor mount on the frame is slotted. Loosen the one big nut on each side and then pick up one side of the engine with a jack underneath the car. The engine will tilt quite a bit, enough to get to that bolt. You will have to take the trans bolts out on the trans crossmember and remove the hydraulic clutch assembly that bolts to the bottom left of the block. Remove the tunnel and related parts too. May have to take off lines from above the
oil filter housing if you have that set up. The point is that you tilt the engine enough to get to that stud nut, or bolt if you don't have studs. Hope this makes sense. It's actually easier than it sounds. It permitted me to remove the head nut on the stud, then to remove the head since I could not remove the studs as they were too tight. Works for the other side. Nothing damaged and it sure beat removing the engine and the associated risk. Needed my heads redone mostly. Good luck.