1969 engine color

In the 70`s I had a 69 GTS with a 340 and the engine was blue, (not turquoise) because I had several big block cars and I knew the difference. Now it`s possible that somebody had painted the engine with the late 340 blue paint though, so I can`t say with authority that it was a factory color or if it was a discolored turquoise. I have read that for the most part 68 340`s were red , 69`s were turquoise with a few (late year models) painted orange and 70`s were orange. I don`t think it`s uncommon for many late year models to be painted in next years color. Chrysler was not a company to waste anything. I painted my 67 ,273 engine red (Mopar spray can) just two years ago and it`s faded really bad, it looks almost orange now. My 68 340 engine, which was originally red, appeared to be orange after 40 years. It`s easy to see how some colors can be mistaken.