If you try and start your car when the rads frozen will it damage the engine?

not by just cranking but if you let it run long it can run hot from lack of water flow and blow head gasket or crack ahead allways a good idea to have good antifreeze mixture not by just cranking but if you let it run long it can run hot from lack of water flow and blow head gasket or crack ahead allways a good idea to have good antifreeze mixture