Has a College Football game ever ended 54-37?
Exactly once. On October 20, 2001, Louisiana beat Idaho 54-37, and no College Football game before or since has ended that way. When it happened it was a scorigami, the first 54-37 in league history.
That makes 54-37 the 1819th most common final score out of 2,215 that have ever occurred in College Football. One point away, 55-37 has happened never and 54-38 has happened 2 times.