1981 (Intake Manifold Coolant Passage)
1982: EXPORT, Australian Design Rules, Economic Commission of Europe, Non-Regulated Markets (Intake Manifold Coolant Passage)
1982: US-49 States, CANADA (Intake Manifold Coolant Passage)
1983: With Automatic Transmission, without High Altitude Operation (Intake Manifold Coolant Passage)
1984: US-California, EXPORT, without Non-Regulated Markets (Intake Manifold Coolant Passage)
1985-86: US-50 States, EXPORT, without Non-Regulated Markets (Intake Manifold Coolant Passage)