Thanks, Tim. I was pretty sure I didn't have a ringer, but i sure thought ALL Chevrolet engines through sometime in the 70's were ORANGE. Obviously you're never too old to learn (don't ask!) Now I'm wondering about the black engines, although a friend of mine recently did a total frame off resto of a '54 1/2ton Hydramatic truck with a gray engine. Still, it makes you wonder about the different colors (different Engine assembly plants, maybe?)
