Can a Polaroid pack camera do large format? The short answer is "yes."
Instructions on how to convert your camera are at http://polaroids.theskeltons.org/pack4x5.htm
2016 was a bad year for Polaroid pack camera owners. The last production of film left the factory and machinery destroyed, turning millions of Polaroids into film orphans. But rather than relegating my Polaroid cameras to the shelf, I wanted to see whether they could be put to use again. This is one example of my efforts.