I'm planning on changing the cooling fan for the summer.  What sizes are other people using, the T-bird vendors seem to be selling 16 inch, but it seems that there is enough clearance for a larger fan and I want all the cooling I can get.

Thanks,
Don

Sorry for the delay in returning here - as usual work intervened...............
I got the aluminum pulley from CVF and had a friend machine off the back groove to shorten it. Pretty close to the exact required location for the Thunderbird.

You can also use a steel double groove from a 302 - and cut it off short as well. Looks like the price has gone up on the aluminum version.


As the others have said - I really prefer the mechanical drive fans - and when I fitted the Hayden clutch, slippage cut the available speed by a fair amount. Plus - when I got the waterpump speed up a bit, you could actually see water rushing back into the upper radiator tank (which is what my 289 motor ordinarily did) when the thermostat was full open. Be sure to use one of the wide opening thermostats.

 
 Steve Metzger       Tucson, Arizona