WHAT DOES 454SS SEATS MEAN?

I am promoting a nice 1972 Chevrolet (Chevy) Chevelle SS 454 Tribute motor vehicle. A true American muscle mass mass automobile or truck. The car or truck incorporates a whole new 454 Major BLOCK motor with about 8k miles that Seems excellent through the entire aftermarket headers and twin exhaust. The motor is again by an automatic Th400 vehicle t