Thread: SBC Running Hot!!

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By the way, look at the blades from the serpentine fan that came off the enging and then look at your flex fan blades.....pitched the opposite direction are'nt they? GM sells several flex fans (metal blades) which should work.... I assume you went to the flex fan because of the thermostatic fan's length.

mike in tucson

Your sending unit on the manifold or side of the head? Either way I would shoot the area with a hand-held infrared to confirm actual temp because you might be getting cavitation around your sender thereby giving a false reading.