Original engine colors??????

1969 Mopars with 340s are something I clearly rememeber. Three guys who lived pretty close to me got brand new 69s. A white barracuda, a green Barracuda and a blue Dart. Those three had red engines. I worked on the Dart a bit so I am 100% positive it was a red engined 69. Sometime later the 340s started appearing that were a blue that was darker than the Chrysler engine blue. Mopar called that color turquoise but it was a good bit more blue than the big block turquoise and didn't have enough green tint that I would call it turquoise. In 1972 I saw my first 69 with an orange engine. A guy broght me a 69 Barracuda with a little front fender damage and I noticed it had the orange. I asked him if the engine was swapped and he said, "Nope, all original". I have seen a few orange engined 69s since that one. So I think 69 was a year that Mopar used whatever was available at each plant of the three colors (and maybe 4 with two colors of blue/turquios) for 340 engines.