This is the 18" silent run fan, 3/4" away from the radiator, no shroud, aluminum radiator.
The blades don't flex, the design cuts the air instead of chopping it so they run quiet and don't rob extra power.
Tight quarters with the serpentine belt dress up kit that pushes everything forward, this fan cleared everything easily, and is keeping the big 440 with headers running cool. No Shroud.
$65.00 shipped in.
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You can even see here the electric fan and shroud setup was actually rubbing the center of the aluminum serpentine water pump pulley in the tight quarters.
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Got a nice job of machining down the aluminum serpentine pulley so the silent run fan would bolt up with the proper spacer.
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As a mock up example here is the first silent run fan setup:
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For those who are curious about the the "Flex Fans".
Here is a picture of one that is 18", makes lots of noise, robs power, and won't clear in the tight quarter situations like Elephant Ears, serpentine belt setups/dress ups, and just plain tight quarter layouts.
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