This issue has been discussed numerous times. The consensus is it was grey (of varying shades depending on the plant building the engine/truck.)

Buy paint from Jim Carter Link or The Filling Station Link. Both claim to have the "correct" color. Unless you can park your truck REAL CLOSE to an original truck, no one will be able to tell if you got the right shade of gray. wink


Kevin
1951 Chevy 3100 work truck
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Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.