Is it normal for a 13 year old males voice not to have changed but already has pubes a mustache chest hair and under arm hair?

Yes, it is normal for you. Everyone changes during Puberty differently to others. Some at an earlier age to others. You may find that your voice suddenly breaks and you may find it slowly changes to a deeper tone. Puberty lasts right up until around 20-years-old for some, maybe even beyond.