The heads of the cap screws are facing the rear of the vehicle. They thread into the starter.

The problem is accessing the upper bolt. You'll need about 24" of extensions (1/2" drive) and a universal joint. Furthermore, you'll need to be absolutely sure that the head of the cap screw is clean and that the socket bit fits all the way down into the screw.

The torque required to break that screw loose will scare you.........be absolutely sure the bit is perfectly square and fully inserted before you apply the torque. BTW, NFW you can add sufficient torque from a 1/2" socket wrench..........you'll need a minimum of 18" to break it loose.

There is a thread in the archives on what happens when you're not careful in the preparation and you strip the head of the cap screw. The next three weeks will be the most painful of your life. You might even take the car to the junkyard rather than deal with the consequences of this screwup.