Hello all,<br>I own a really hot 1966 122s. but I want it to be cooler than it already is. Well, what I'm dealing with is I don't know if the radiator was replaced when the engine was swapped.Is there a separate part # for the b 18 & B 20 radiators? I am missing the shroud plastic and do not have an overflow set up for the coolant.The fan doesn't look too big to me. A guy I know suggested a P 1800 clutched fan assembly or maybe an Electric fan? I was thinking , parts availability might be an issue. I'd prefer performance over originality, as it is hot out here in southern California.I plan on flushing the radiator,and installing a new thermostat. The guy at the Napa store said they had different temp ranges on the thermostats. Which thermostat would you recommend? I also was considering an Oil cooler as well and checking timing.I read a post about using purified water and corrosion inhibitor/pump lube as it would dissipate heat better, than coolant? If there are updates I should know about please let me know. I am afraid of heat damage. I plan on it being a daily driver. the traffic out here is hard stop and go. I bought the car in Oakland and the guy I bought it off of was running 20w50 in it. and I noticed on the highway it got hot climbing hills and would cool of coming down the hills. I would use the gears to slow me down. It appeared to drop the temp according to the gage. It is also hard to restart after it warms up. Should I install a water and oil temp gauges in my car? Like to be able to monitor it. I also use the heater lever which helps. Thanks for your input. Looking forward to hearing from you.