Beer is riding on an argument.

HemiSSDart said

Technically the Demon was still a Dart and had a 340 through 1972. In fact the 72 340 Demon had DART on the trunk lid...

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Right- that's why I said Dart (Swinger).
The year groupings mentioned suggested the 111 in. wheelbase cars were the ones being referenced. But, assume nothing- especially when a beer bet is involved!