Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_53 ( engine_s_ VARCHAR, points VARCHAR, year VARCHAR )

### Question ###
Which engine has more than 0 points and a year before 1984?

### Accurate SQL ###

SELECT engine_s_ FROM table_name_53 WHERE points > 0 AND year < 1984