This head is for the 1960/63 Super Rocket & 1962/63 Rocket Gold
Star. No visual difference from the 67-1126 head was detected.
The valves for 1960 and up Super Rocket were intake #67-1551 1.455"
(37mm?), exhaust #67-967 1.38"(35mm?)
The inlet valve for the Big Valve Super Rocket and Rocket Gold Star
was #67-961 @ 1.5"(oh wow).
67-1126
This is the 70mm A-10 1956/57 Road Rocket & 1958/59 Super Rocket head.
The valves were intake #67-968 1.41 ", exhaust #67-967 1.38".
Later/bigger valves can be fitted to this head, if using the correct spring hardware.
67-1122
This is the 1956-62 66mm A-7 Shooting Star head.
The valves for 1956/57 are intake #67-531 1.3", exhaust #67-532
1.3".
The valves for 1958/62 are intake # 67-740, exhaust # 67-741
