I have seen 235s in both blue and gray. The Jim Carter catalog lists gray paint for a Chevy 6-cylinder. Chevy Duty lists blue paint for a Chevy 6-cylinder.
I did search the archives, it looks like this question has been asked a few times, but never answered definitively.
Can someone shed some light on this for me?
Thanks.
For the record, I have a 57 1/2 ton. The engine was orange when I bought the truck, with no traces of original paint.