Was the 273 available in a 68 Barracuda?

From a B body perspective- the 273 is extremely rare in 68 B body cars.

I've only ever seen two.
One WL Coronet and one RL belvedere.

It is somewhat rare in 66 and 67 Dodge B bodies.
All of my 66/67 Dodges have been 318 cars.
A bit more common in Plymouths.