The incident happened on The Promenade in Tredegar at 09:45 BST on Tuesday.
The pedestrian suffered severe head injuries and was taken to University Hospital of Wales, Cardiff where he later died.
A 54-year-old local man has been arrested on suspicion of death by careless driving and is currently in police custody.
Gwent Police has asked anyone who witnessed the collision is to call 101 quoting log 89 14/04/15.
A 76-year-old man has died after being hit by a car in Blaenau Gwent.