The 1970 Tasman Series was the seventh in the Tasman Series, beginning on 3 January and ending on 22 February after seven races. The series was won by Graeme Lawrence of New Zealand, driving the Ferrari 246T that fellow New Zealander Chris Amon raced to win the 1969 series.
It was a transitional year, the first year not involving the European Formula One teams which had given the Tasman Series its distinctive style. It was also the first year that stock production engines of up to five litres cubic capacity were allowed, in short, Formula 5000. Entries arrived from both Europe and the United States, although not of the same quality of the earlier Tasman Formula era. Traditional 2.5 litre Tasman cars, like Lawrence's Ferrari, continued to race along with the 1.6 litre cars that filled much of the lower end of the grids during the Tasman era.
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All scores from points-scoring races were counted