His family moved to Bakersfield, California, and then to Long Beach, where he attended Franklin Junior High School.

[2] In 1964, McCullouch was named Co-Athlete of the Year in the California Interscholastic Federation (CIF) Southern Section by the Helms Athletic Foundation.

[2] He later transferred to the University of Southern California (USC), where he played college football under coach John McKay, who switched McCullouch to wide receiver.

22 during the 1966 and 1967 seasons, McCulloch played wide receiver on an offensive USC Trojan Football squad that featured tailback O. J.

McCullouch also provided down-field blocking on break-away plays, often for 1968 Heisman Trophy winner Simpson.

[17] He played in the 1968 College All Star Game against the Green Bay Packers, catching two touchdown passes from future Lions teammate Greg Landry.

[18][19] The Packers’ future Hall of Fame defensive back Herb Adderly thought McCullouch was the fastest receiver for 20 yards.

[9][22] As the world record holder and National Champion in the hurdles, McCullouch was a favorite for the Olympic gold medal.

[citation needed] By the time the Olympic races rolled around, Detroit had already played 5 official games of the regular season and was about to take the lead in the Central Division.

[26] By that time, McCullouch had already amassed 419 yards receiving and scored three touchdowns,[27] including an 80-yard reception, from the Lions' other first round pick Greg Landry, in their first NFL game.

[28] In only the sixth game of his rookie season, he scored two touchdowns against the defending champion Packers in the first quarter.

[1] McCullouch finished off his career with a non-productive season with the New Orleans Saints in 1974, playing in only three games with one reception.