no need to start off defensively Justin, we don't mind your waist

there's always been and will always be some debate about engine colors, especially because one color is actually
blue-grey [which yours should be], which is often mistakely called simply blue .... see
this list, it comes closest to what's generally accepted, but translating those color names into actual paint codes is another topic!
one reason we find engines in 50/60 year old vehicles that don't appear as some expect, apart from the variation in colors used over time, is because of engine replacement, as well as the fact that some years the engines used in cars vs trucks or with particular transmissions were different colors - and yes, different size engines were different colors
Bill