While in college, Belk was a student athlete, making the honor roll and dean’s list.

In the NFL, Belk proved to be a versatile, reliable, and very intelligent football player, starting at both defensive end and tackle.

One of his coaches, Dick Nolan, made this testimony in reference to Belk, “What I like about Bill is that he's very smart.

Belk made an impact in his rookie season when he stepped up for Kevin Hardy after he went down with a right knee sprain.

[3] In 1975, Belk joined the Toronto Argonauts in the Canadian Football League.