<VV> Re: Cooling fan improvement

[JVHRoberts at aol.com]

Agreed, but it seems that all of these are marginal improvements (certainly  
worth doing!) but won't close the huge deficit in cooling capacity. 
 
BTW, there's one heck of a lot more difference between the '70 PU truck and  
the new one besides the 350 SBC and the LS series engines! 
 
In a message dated 8/3/2007 6:01:02 PM Eastern Daylight Time, NicolCS  writes:

 
Well, since you asked – how about  reducing the heat?  Fuel injection, roller 
rockers, roller lifters,  synthetic oil all reduce heat and improve fuel 
economy.  Once that’s  done, you can cut back on the fan and fan HP by simply 
slowing it down with a  larger pulley.  (Ever compare the radiator size between 
say a ’70 ¾ ton  pickup and a current ¾ both with a 350 and air?  The newer one 
is about ½  the volume (though part of that is ‘cause it’s aluminum).  This 
reduction  is due to roller cams and EFI.) 
Craig  Nicol



 



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