Thank you kindly! I am in search.......Ma Mopar changed part numbers on the radiators yearly. The ones you're looking for are 3443969 w/N51 or 3443970 w/A35 + N51. A35 was the heavy duty trailer towing package and N51 was max cooling package. I don't show a 22" available with a 340.
Thank you much!Not sure if they are the same but the 1970 Challenger uses 2998974 for the 340 with A833 and 727 and 2998949 for maximum cooling both are 26". The maximum cooling radiator is also used with the 318 so could be easier to find, I got these numbers from the original 1970 service manual so they should be accurate.
Thank you much!There wasn't a 22" showing for the 1970 Challenger either.