6 or SA6 or Single Action 6
To see Schematic of the 1959 version of the Exhaust Valve CLICK HERE
To see Schematic of the 1970 version of the Exhaust Valve CLICK HERE
Scroll down for available parts
To see Schematic of the 1959 version of the Exhaust Valve CLICK HERE
To see Schematic of the 1970 version of the Exhaust Valve CLICK HERE
Scroll down for available parts