<VV> Oil Cooler Question (Efficiency)

[Derek Archer]

I recently acquired a '64 spyder coupe in very good condition. The 
engine was rebuilt in 1985 by rear engine specialists, but that's not 
the point. I took off the oil cooler cover to clean it out and noticed 
it has the folded-fin type oil cooler rather than the 12-plate cooler. 
I have heard of people saying that the folded fin is the most 
efficient, but I would like to know if this cooler is ok or should be 
replaced with the 12-plate type.