Stock nozzles will not fit this hot block. You need to upgrade the nozzles to the RepRap standard : M6x1x7.5×12.5
DDX PH3 Mosquito™ Magnum Upgrade
DDX PH3 Mosquito™ Upgrade
Upgrade your Creality hotend and DDX Direct Drive eXtruder with a full genuine Mosquito™ hotend to PHase 3.
Turn your Creality hotend into an all-metal.
Stop the issues created by the PTFE deformation when using temperatures above 220° C.
Improve the heat dissipation capacity and melt flow.
Use even shorter retractions.