Re: Converting L6 250, to a clutched fan.
 

Yeah. Usually. Sometimes, you can take the top radiator brackets off to lean it forward for more space -- that is if there is any ''give'' in that direction.
With the radiator out of the way, there is a much clearer shot at the Water Pump. But then you gotta refill all the coolant anyway. Might as well go whole hog: new coolant, new T-Stat, new hoses, new clamps...
But in normal circumstances it's doable.
Just be very careful not to touch the back vanes on the radiator with wrenches, fans, pulley parts or water pumps. They are quite fragile, and bend easy.
If you have AT coolant lines in the radiator, then not so much flex. And A/C parts [admittedly a mystery to me] or trans pre-cooler in front may get in the way.

Re: Converting L6 250, to a clutched fan.
 

Thanks ! Planning on upgrading to a clutch fan over fixed. Do you really have to change the fan also or will the original work ok ?

Re: Converting L6 250, to a clutched fan.
 

Fan is special to the clutch. I used a Derale #17118 18” fan that i purchased through ebay for 54.99

Re: Converting L6 250, to a clutched fan.
 

Will it fit inside the factory shroud on a 71 307 ?

Re: Converting L6 250, to a clutched fan.
 

Lmc shows fan shrouds and everything for you

Re: Converting L6 250, to a clutched fan.
 

Lmc shows fan shrouds and everything for you

Re: Converting L6 250, to a clutched fan.
 

Got my radiator and fan shroud installed everything works and fits as it should