Originally Posted by 6PAX
So, if I understand this correctly, the 2947 clutch would cool better in city driving due to the higher percentage of engagement? I'm not concerned with hp loss as much as cooling efficiency. Also, I am uncertain about the number of blades on the fan. From what I've read here and elsewhere, some say the 5 blade is best while other say the 7 blade is better. I'm uncertain which combo to go with, 2965 or 2947 clutch with 5 or 7 blade fan. confused


This is a great subject, that came up at a good time, as I have been thinking about fans on my Factory Appearing build. I have a big block A body and standard its equipped with a 7 blade fixed fan with a 5/8" spacer , hoping that one of these short clutches fits and put the fan in a good spot within the shroud, otherwise a fixed 4 blade fan might be finding a home in it for racing.

running up my post count some more .