...I've yet to find what I'd consider a really correct 283 grey. I think the closest might be the "Late Greys" that the Filling Station and Hersch offer. We went with the Hersch on the current project.
The color was the same from 1958 until at least 1966 for the 283 they put in pickups, and was probably darker new than it is now, 50 years later but it is for sure not the Dark Grey the sixes had.
That said, I think that next time I'm involved with a 283 truck I'm going to find an unmoletsed valve or timing chain cover and spend the coin to have it matched to see how it looks.
Good Luck!
