The son of an Italian immigrant, Gordon attended Liverpool Boys' High School but left at the age of 14 to enter a sign writing apprenticeship.
Within just four months Guasco was starting as far back as 120 yards and challenging top riders Bob Sharp and Jim Airey for wins.
Other than continued success on track, Guasco's main achievement was to be convincing Frank Oliveri, the manager of the then new Liverpool Speedway in western Sydney, to add bikes to his racing programs.
[3] Guasco, along with friend and fellow Australian rider Jim Airey were signed to race in England by Sunderland Saints promoter Mike Parker.
After recapturing his form while back in Australia, Guasco negotiated for a return to England in 1969 with the Poole Pirates,[6] who with "Horse" leading the way, were British League Champions in 1969.
In a sad twist, Gordon Guasco, the man who had originally convinced management to run bikes at the speedway, was killed in a crash there on 8 November 1970.