Engine color?
 

To begin with, Thank you to all that replied to my earlier post. Now for a new one...LOL.

I have a 1970 Mach1, I am in the process of having the engine rebuilt. I need to find the correct color paint for my engine. I have found two Ford Blues. One is a lighter blue than the other. Can anyone tell me which of these is the correct ones? Yes, I did ask the sales people and even went to a Ford dealership, result, the knew less than me. Anywho, I would greatly appreciate any and all help.

My 69 Mach 1's are dark blue. (390 & 351w)
also, I have a '71 302 engine. Its dark also.
Dont see why the '70 would be different, but not sure.

The light Ford blue is what was used in the later model cars.