I have been having heating issues with my 472 in the Polara. It only has the 22" rad. I tried a 7 blade direct drive flex fan, no good, have an original 7 blade direct drive max cooling fan, no good, and then what the car came with a VERY light, plastc Flex-a-lite direct drive fan. As long as the car is moving the engine runs at 170-175 degrees. When I stop she'll go as high as 210 before I turn the car off. Since installing water wetter and a 165 thermostat it has not gone above 205, but I did not have a shroud. I installed a date correct fan shroud last night and we'll see this weekend how it goes, I'll keep everyone posted. Next step is a viscous fan if the current set up doesn't keep it cool, after that, electric fan for sure, I want to keep it looking as factory as possible. I know, I know, the 472 is not factory, but it keeps brand X enthusiasts guessing. -- Steve '63 Hemi Polara ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! '62 to '65 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html.