Hello everyone. I need help with my engine paint color.

I have 1971 Fury I 440 police car (PK41UF) that was built in June of '71. It has the original U code E86 440 high performance engine.

The previous owner painted the engine Street Hemi Orange. However, upon cleaning some parts, I found the Chrysler Turquoise Blue underneath.

What color should my engine be?

Thanks in advance for your replies.