S&S Cycle 84-99 3-1/2in x 4-1/4in Standard 80in Piston Set

Features

• S&S® forged, 3-1/2" bore replacement pistons for 1984-'99 HD® 80" big twins With S&S® Super Stock Cylinder Heads. 4-1/4" stroke. 10:1 compression. Standard bore size.