It reminds me quite a bit of the unit we pulled out of a s3 and couldn’t get a good flow through.
Have a competent shop flow-test it before installing.
At the very least, lay it flat on some some saw horses, put a garden hose in lower port and see how much water flows across (out the upper hose connection). It should handle everthing a 1/2" hose can deliver.
Eric,
Attached is a picture of the DAC3061 Thermostat that I removed from the radiator in my 1987 XJ6 parts car. It has “91C” stamped on it as shown in the picture.
I have tested a few of these thermostats over the past 20 years or so after I removed a radiator and they always tested good and closed reasonably close to the 91C. I tested them on the stove in a pot of water with digital and analog thermometers. They seem to be very reliable to me.
I had a cooling problem in our 1984 XJ6 Vanden Plas 10 or 12 years ago where the coolant temperature was regularly around 100-110C but the auxiliary cooling fan did not come on. The fan and Thermostat both tested good but the radiator was badly clogged restricting flow. The shop showed me how clogged the tubes were and I had the radiator recored. After I reinstalled everything the cooling system ran much cooler and then the auxiliary cooling fan typically came on when the coolant temperature gauge read about 95C, usually on hot days or in traffic with the A/C on.
The locating pins of the aluminum radiator are in a different spot than the OEM radiator, so I would need to drill more holes in both the bottom rail and the top rail…
Once cleaned and, maybe, rodded, it’ll work just fine. - If not, something else may be amiss, not to be cured by more cooling capacity. If you’ve got a fever, you’ll treat the infection, but won’t bring more ice cold beer, will you? -
Plus, all connections are where they are supposed to be and will fit with correct tubes, bolts. Is that just too boring?
Eric!
Here is my 2 cent worth, many years ago I went to a local
radiator shop ,they added some fin area to my radiator at
that time.
I have never had any problems with my cooling system after
30 years,
I flush my cooling system through with cleaner every 2 years.