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Feets, is your motor in the stock '65 location, or is it moved back with a later B-Body K-Member? I'm wondering if this will fir a '65 with a 440 in the stock location.

Thanks for a GREAT writeup,
Ben

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This is a trick question. My K frame did move the engine back a bit. The catch is that my radiator support is bent and twisted badly. The bottom of the radiator has been pushed back substantially. It's almost a wash. If you look closely at the pics you can see the angle on my radiator. Compare the angle of the pulley to the angle of the fan. It's not pretty.



I imagine it would still fit in a car that wasn't butchered like mine. The fan sticks out from the radiator core 3-1/4". If you have that much room between the fins on the radiator and the bolts on the water pump, it'll fit.

I was playing with it again today. My fan is set to turn on at 195 degrees and turn off at 175. I have a 180 degree thermostat.
I heat soaked the engine and let it idle. With minimal water flow, a radiator that's half clogged with crud, and the fan running I was actually able to cool the engine down below the thermostat's rated temperature. It took a little while but the fan turned off at 175 on the 180 stat. My engine temperature sensor for the fan is in the water pump housing.
I wonder what it'd do if the radiator wasn't full of gunk...