WHAT DOES TOYOTA 4AGE BLACKTOP ENGINE FOR SALE MEAN?

The 20-Valve engines never arrived formally to the US (and many other overseas marketplaces exactly where the old 4AGEs were offered- not to mention it imparts a really exotic presence. The person throttle bodies seem like they arrived off the wonderful 503 race engines. Give it some thought, no Toyota factory RACE Engine had 5 valves for each cyli