user: Question: what is the engine that saw a Chassis of Porsche 718, and 0 points, prior to 1964?
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1957.0, 'Ecurie Maarsbergen', 'Porsche 550RS', 'Porsche Flat-4', 0.0]
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Chassis" = 'Porsche 718' AND "Points" = 0.0 AND "Year" < 1964.0;