Does the Data Tag have "26" at the end of the codes.If not the car may take a 22" rad.My buddy had a 70 Challenger R/T 6 pac car w/a 22" rad.They all didn't get the H.D. cooling system package. John.

1970 Dodge Charger R/T S.E. 1969 Dodge Dart GTS 440 M-Code 1970 Dodge Charger 500 383/4-speed w/A.C.