Has an AFL game ever ended 170-63?
Exactly once. On April 16, 1977, Carlton beat St Kilda 170-63, and no AFL game before or since has ended that way. When it happened it was a scorigami, the first 170-63 in league history.
That makes 170-63 the 3836th most common final score out of 6,607 that have ever occurred in AFL. One point away, 171-63 has happened never and 170-64 has happened never.