Hayden short vs long fan clutch

[themechanic]

With the fan clutch being the only variable, is there any change in cooling using the short vs longer fan clutch by Hayden?

Part numbers are 2947 for the short one and 2747 for the longer one.

 

[1968rt]

That would depend on where the fan winds up. Half way into the shroud works well.Too far in is no good.

 

[themechanic]

That would depend on where the fan winds up. Half way into the shroud works well.Too far in is no good.

I realize there needs to be space in front for the engine to move but would there be a higher temperature being too close to the radiator?