Update on my install... it's been seven months since I posted this comparison and I am extremely happy with the Koyorad. No leaks or issues. Runs mid 180 degrees on the highway. 2,000 mile road trip from San Diego through New Mexico with the family and all our crap. Even off road in the So Cal...
I just put a new radiator in my 80. Thanks to everyone who posted info about radiator choices... I picked up pieces of info from various thread but saw some conflicting information so I thought I'd post my experience with Koyorad vs. TYC since I had both sitting side-by-side in my garage. Photos...