CREATE TABLE table_67039 ("Year" FLOAT, "Chassis" CLOB, "Engine ( s ) " CLOB, "Tyres" CLOB, "Points" CLOB)

What is the engine(s) on the car before 1978 with ensign n177 chassis?
SELECT "Engine(s)" FROM table_67039 WHERE "Chassis" = 'ensign n177' AND "Year" < '1978'
SELECT "Engine(s)" FROM "table_67039" WHERE "Chassis" = 'ensign n177' AND "Year" < '1978'