Any experience with flex fans on Packard V8's? I've noticed that the pilot hole on original 56J (Golden Hawk) 4 blade steel fans is somewhat larger than that on a lot of aftermarket fans; Flex-a-Lite fans seem typically about 0.625".

While I live in inland So. CA with lots of gridlocked traffic and very high summer temps, this isn't just for better low speed cooling. A few '56 Golden Hawks have experienced cracked and even broken fan blades.

Just discovered forum, a little late! I reluctantly sold several Packards in last couple of years as survival strategy for retirement. Kept a mint low-mileage Packard Hawk as a companion to the '56 GH.