WHAT DOES 454SS SEATS MEAN?

I'm advertising a nice 1972 Chevrolet (Chevy) Chevelle SS 454 Tribute motorcar. A real American muscle mass car or truck. The car or truck incorporates a brand new 454 Big BLOCK motor with about 8k miles that Seems great all over the aftermarket headers and twin exhaust. The motor is back by an automatic Th400 car transmission Together with a 12 Bo