well the valve cover is off of my 84 original engine i cleaned it up and put it on cause it looked alot better.
but yes i want to say in 1985 or 6 they switched to the square cover,
the only reason im confused on witch engine i have is because it is out of and 1984 2wd fuel injected truck fuel injection was an option then. i diddnt even know that until i looked at the vins off the truck it came out of and sure enough oct/1983 22r-ec
but the engine may or may not been original i should of checked the vins and now i cant get to em. all i know is that this engine was rebuilt 10k ago but i dont know if its original.
