I bought a Pantera last year that came with the Ron Davis radiator by Dennis. The car had been sitting for 20 years and not surprisingly the radiator began leaking once the car was resuscitated. I was able to find an identical used replacement and it has not leaked thus far. It has been a pleasure to have it in the car. The shroud and fan configuration is impressive. I had Ron Davis radiators in other cars and they were equally up to the task. They are about twice the price of a Fluidyne. If my replacement fails I will consider the Fluidyne route to save money although the cost for new plumbing, temp sensors, and other incidentals will increase the price for me to switch. Also, the lead time to get a Ron Davis radiator can be daunting kind of like waiting for a Covid vaccination.