Original engine colors??????

Yes that's the common thinking of paint colors
My thinking of 340's were orange red from 68 to 71
Then in 72 the color change to corporate blue but Twisted grips 69 has a block that has turquoise on his small block 340 that looks to be original it's possible that someone could have amproed the engine back in the day and painted it turquoise blue or it's possible it come from the factory like that if so there should be more original paint engines out there for us to see IE the 383 in my GTX was turquoise in 68 if my car had been a 69 it would have been a Hemi Orange that's why I asked to see some pictures just a curiosity thanks for the comment