INDICATORS ON BLACKTOP 20V 4AGE YOU SHOULD KNOW

The 4A-GE engines to the 1985 model yr are generally known as "blue leading" rather than the later on "purple major" engines, as the paint color around the valve covers is different, to show the various engine revision, making use of diverse port measurements, various airflow metering, together with other insignificant distinctions on the engine.St