The fourth-era 4A-GE engine was made from 1991 to 1995. It's silver cam covers with chrome lettering, hence the nickname "silver major". This engine another time options a totally new cylinder head which makes use of five valves per cylinder instead of 4. It employs Toyota's Variable Valve Timing (VVT) https://edgarfvmeu.fare-blog.com/40140368/the-best-side-of-4age-engine-for-sale