The fourth-generation 4A-GE engine was made from 1991 to 1995. It has silver cam handles with chrome lettering, hence the nickname "silver major". This engine yet again attributes a totally new cylinder head which uses five valves for every cylinder in lieu of 4. It uses Toyota's Variable Valve Timing https://zandereatme.uzblog.net/the-2-minute-rule-for-toyota-4age-53325970