Boy am I going to get it on this one! In my opinion
oil coolers on cobras are obsolete. Period ! Todays
synthetic oils are much better that the stuff we used in the 70's. When cobras were racing there was a need,,,. then. A better solution is a in line heat exchanger that heats/cools
oil in one step. There are many types I have seen, but the one that I liked best is a unit that Gordon Levy in Phoenix sells for about 500$. This unit uses the bottom coolant hose going to your radiator.
I to have a unit out there on my car that looks like a
oil cooler--- That is really a secondary automatic transmission cooler with a fan that is sold by Summett.
For you period correct guys I guess it's o.k. to have one of those things. Just not for me.
cobrashoch