73 up disc brake conversion. Is my caliper going to work when revesered to oposite sides?

Can not get get solid pedal when bleeding with helper. 3 - 4 pumps then pedal is solid.
Push down good pedal. Let up pedal goes back to floor. Can find any leaks or air. We have
done this 3 times. Everything is new. 15/16 master, lines calipers,pads slider system
10" rear brakes,new shoes, parts, wheel cylinders,rear shoes are tightened to new drums.
I think may have to change to different brake calipers for diplomat or Aspen 80s. What
is your wisdom? I have looked at this site for a week. Either that or I need another Master cyl.
Sorry! Wrong photo.
View attachment 1715518750

DSCF0745 front left caliper 5x4.jpg

DSCF0745 front left caliper 5x4.jpg