Engine painting

I see GTS Registry bought Turquoise engine paint for his 69 340. I thought my 69 Swinger 340 was painted with Blue engine paint. Does anybody know which is correct?

I believe both are correct, I think there was a thread where someone stated its possible for 3 different color combos for a 69 340.. here is a link to what I found on npd site
http://www.npdlink.com/store/produc...mi_orange-172757-90045.html?shop_by_year=1969