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Old 08-31-2016, 02:23 PM   #13
Brad54
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Join Date: Aug 2006
Location: Athens, Georgia
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Re: Factory correct fan

Quote:
Originally Posted by jbgroby View Post
I know on my 305 V-6 engines, the early models came with a smallish 4 blade fan. When I upgraded to P/S I went on the hunt for a 2 or 3 groove pulley setup and that came with a 6 bladed fan which is strange as the position of the blades not spaced evenly, but it is balanced.

TRY that with a ceiling fan........
Fans with more than four blades are usually (I won't say "always," because someone will find one) unevenly spaced like that. It keeps the air from "cavitating." With them unevenly spaced, it always gets a "bite" of air.
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