Has a College Football game ever ended 55-47?
Yes. College Football has seen a final score of 55-47 2 times. It first happened on October 27, 1956, when Drake beat Bradley, and most recently on September 16, 2007, when Tulsa beat BYU.
That makes 55-47 the 1610th most common final score out of 2,215 that have ever occurred in College Football. One point away, 56-47 has happened never and 55-48 has happened 9 times. At one point the score disappeared for 51 years, between 1956 and 2007.