Early a body torsion bars

Yes,there wer 6 cyl ,273 2bbl ,AND 273 4bbl bars used in 65 and 66 .In 64 there were just 6 and 273 2bbl size .The numbers are listed in the parts manual . I used the 4bbl ones in my 6 cyl 65 Valiant wagon for a stiffer ride.