[SCOTI]

Originally Posted by Gregski

I heard that too, and when it comes down to it, and I am talking 20 years as an adult (not teenager) of fiddling experience as long as your TIMING yes your timing is in order and you have the proper water pump (not over drive not under drive pulley) and you have a proper radiator and of course no air bubbles, the fan shroud is moot, it is more there for safety and protection than cooling, so it's role is to prevent the metal fans of yesteryear from cutting your fingers off and not so much for routing the air, when you are cruising at 75 MPH on the freeway there is a wall of air heading towards the engine, just sayin'

As another guy that has 20yrs experience w/vehicles.... the shroud is there for safety AND helping route/pull air through a radiator @ low/no speed. If you sit in traffic a lot, the shroud is much more important vs. @ 75mph cruise.