A vehicle refrigeration system includes a compressor, a condenser in fluid communication with the compressor, a chiller, a vapor injection module, and a refrigerant control block. The refrigerant control block includes a plurality of outer walls which provide a plurality of openings in fluid communication with a plurality of internal fluid paths. The plurality of openings include a VPI block outlet and a chiller block outlet. A first EXV opening receives a first EXV for modulating refrigerant flow out of the VPI block outlet through the vapor injection module to the compressor. A second EXV opening receives a second EXV for modulating refrigerant flow out of the chiller block outlet to the chiller.