Exhaust manifold color?
 

What color is used to paint the stock units on a 68 400?

I only know of two options with exhaust manifolds.

1) Ceramic coating which cost some coin and if you scratch upon installation it can peal off.
2) Eastwood sells a product called Calyx which is what I use and looks great. Last along time too however you can always go back and add more.

The third option I guess is the natural look thus blast and install and let them patina.

Is there a color name? I used vht header color paint and it looks too silver. I was thinking go back over with something darker.

Try this in “cast iron grey”. https://www.kbs-coatings.com/xtc.html