The Ford Barn - View Single Post - Were 4-blade fans ever an original ftting?

Bob Bidonde · 11-12-2017, 07:47 AM

None of the original propeller type fans have good fatigue life, and are prone to cracking. The fan blades see a combination of fore-aft bending and centrifugal tension loads that the sheet metal Ford & Holley designs are poorly designed to carry.

I installed a NOS Holley single thickness fan on my Coupe after its existing Ford fan cracked. The single thickness fan also cracked in less than 20,000 miles.

The cast aluminum reproductions fan, because of its homogeneous casting, is far superior to the original fans.

11-12-2017, 07:47 AM	#4
Bob Bidonde Senior Member Join Date: May 2010 Location: Long Island, NY Posts: 3,472	Re: Were 4-blade fans ever an original ftting? None of the original propeller type fans have good fatigue life, and are prone to cracking. The fan blades see a combination of fore-aft bending and centrifugal tension loads that the sheet metal Ford & Holley designs are poorly designed to carry. I installed a NOS Holley single thickness fan on my Coupe after its existing Ford fan cracked. The single thickness fan also cracked in less than 20,000 miles. The cast aluminum reproductions fan, because of its homogeneous casting, is far superior to the original fans. __________________ Bob Bidonde