Substitute for TR3A fan.

[Angelo Graham <a3graham@mc1adm.uwaterloo.ca>]

Good day fellow listers:
At a recent British car meet I noticed a few TR4A's running what appeared
to be TR6 plastic fans on the fan hubs.  Wasn't able to track down the
owners to find out about this.  Anyone know about this "conversion" & what
is involved?  I'm assuming the same conversion would work on a 3A, but you
would loose the hand crank bolt.  Any more effective cooling with a multi
blade, plastic fan?  Thanks for any leads.

Angelo Graham
1959 TR3A
Waterloo, Ont. Canada