fan blades

bartibog1

has any one every changed the 4 blade fans on 1953 super wasps to either a 5 0r 6 blade type with any results like running cooler etc. if so any part numbers
steve

[Deleted User]

Yes ,changing to a modern flex fan will aid in cooling. All other things being equal 20 degrees more cooling was gained when a friend put one on a 1949 Super with 262.
Get the right spacer for good right clearance,
Roger

hdsn49

Any advice on the type or model number of the flex fan and the spacer needed.

rambos_ride

The fan should be min of 3/4 of an inch from the radiator - I think anything over 1.5" and you'll start losing efficiency.

[Deleted User]

We used a Imperial Flex Fan by Hayden # 221618 . I dont remember the size spacer off hand .I want to say 1" comes to mind but as stated above its whatever gives you proper clearance,
Roger

[Deleted User]

Stay away from those plastic fans. Walt.

[Deleted User]

I would not think a plastic fan is a good idea either . That Imperial one has Steel frame and flexible Stainless blades with good pitch to it. The centrifugal force straightens them as speed picks up . Provides similar effect to a clutch fan.
Roger

4Hud

Speaking of fans, it is a very good idea to thoroughly check the blades, pulley and bolts regularly. I have seen the aftermath of a wayward fan blade through a hood/bonnet. Scary.

Chris Smith

Be carefull if you buy a stainless steel flex fan. The blades are dangerously sharp and will slice you quicker than a ginzu knife.