1966 A-Body Fan Clutch for 273

I don't think the early A bodies had a fan clutch offered.
all the early a's I have worked on had a fan bolted to the water pump with a spacer.

What I know of only Darts, Valiants and Barracudas with 273 and a/c had the fan clutch! They also had the very special metal cover to get a better cooling. All this started in 1965 when the a/c was factory equipment.