He was selected for the 1971 series against the Lions making his debut in the first test defeat in Dunedin. Norton went on to play in 27 consecutive tests. He captained the All Blacks to a 4-1 series victory over the Lions in 1977 which featured his final appearance for New Zealand in the fourth test victory.
Norton finished his career having played 197 first class games, including 82 for Canterbury and 61 for the All Blacks including 27 tests.
Following his retirement, Norton remained actively involved as a coach and administrator with the Linwood club in Christchurch. He was appointed a Member of the New Zealand Order of Merit, for services to rugby in the 2006 New Year Honours.