CREATE TABLE table_68999 ("Engine code" TEXT, "Displacement" TEXT, "Power ,  Torque@rpm" TEXT, "Redline  ( rpm ) " FLOAT, "Year" FLOAT)

What is the displacement of the engine that has a Redline rpm higher than 4750, from 2005?
SELECT "Displacement" FROM table_68999 WHERE "Redline (rpm)" > '4750' AND "Year" = '2005'
SELECT "Displacement" FROM "table_68999" WHERE "Redline (rpm)" > '4750' AND "Year" = '2005'