Ahh okay, so you give every chunk its own voxel array which will contain the 16x16x16 blocks of itself. And then i only have to keep track of where a chunk is and access its own voxel array to know what happened when i save or recreate the models (to only render visible faces).

I guess that can work. Then the big chunk array for the manager would only be 4096 times smaller than the whole voxel array which i won't need anymore so i can create a much bigger world.