69 Barracuda 340 versus 340-s...

I have a 69 340-s, and they definitely have to have a53 on the f-tag, and like one of many said, there was no round fender medallion, it was a one year only style that said 340-s on both fenders. "S" also had hd suspension, dual exhaust, 8 3/4 rear end, 340 or 383. Mine has/had std drum brakes all around, no tach and std steering. Hope it helps.