CRG Report on Fan Blades question

[1967butternut]

I've got two very similar four blade fans trying to figure out which is correct for LOS Feb 67 build, 327 2bbl LF7 (No A.I.R.) base V8 model.

No part numbers stamped into 4 blade fans?

[KurtS]

Most fans don't have part numbers stamped in them....

[1967butternut]

Most fans don't have part numbers stamped in them....

Thanks, good to know.  Makes it a lot harder to tell if a particular fan is really the correct one for a particular car.

Of course any of the four blade fans will be closer to original than the fiberglass flex fan that's been on my car for at least 45 years!

[Mike S]

Neither of my '67 fixed blade fans have numbers. I believe one has the letter 'S' stamped in the hub. Maybe the mfg?

Mike

[1967butternut]

Neither of my '67 fixed blade fans have numbers. I believe one has the letter 'S' stamped in the hub. Maybe the mfg?

Mike

I don't see any stamps at all on mine. Do you have one that no doubt came from an original 1967 V8?
Does your look like one of mine?

I noticed that one of mine felt heavier than the other, so after weighing and measuring found that

The darker one in the pictures is 8 ounces heavier and has 1/2 inch longer blades tip-to-tip.

Lighter one: 1 lb. 15.2 oz, 17 1/8 inch long blades.
Darker one: 2 lb. 7.2 oz, 17 5/8 inch long blades.

Could someone weigh and measure a fan that is for sure an original part?