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World's cleanest V12 four-stroke engine – make it yourself for $60 Click for more photographs of this amazing piece of paper engineering. By Sebastian Blanco ... the cooling fan and the crankshaft.
Burning gasses during the engine's power stroke can ... pump suction. The fan shroud ensures that all the air drawn by the fan be pulled through the radiator for optimum cooling.
4-Wheel & Off ... and a smoother running engine too. Check it out as we install Perma-Cool's new dual 14-inch fan setup on a '97 K2500 Suburban for the ultimate in cooling. See 1 Photo Fast ...