Super Stock (SS) is a powerful, fast (100+ MPH) Inboard runabout class. These exciting flatbottom hulled boats are powered by high-winding, 427 cubic inch big block Chevrolet engines, based on the venerable L88 design, which must be mounted rear of amidships and drive forward through a V-drive. Drivers often run both Super Stock and Pro Stock, so you may see boats with SS/PS next to the number.
