BSA A-7 & A-10 Dual Port Heads/Manifolds
& Single Port Heads
Dave Comeau
2 Dec 2001- revised 19 July 2003
Please note-I have used the casting pn and not the BSA assigned assembly
pn
67-1549 for A-10
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 A-10 1956/57 Road Rocket & 1958/59 Super Rocket head.
My parts books makes no mention of pre-56 Road Rocket, but I believe
they existed.
The valves were intake #67-968 1.41 ", exhaust #67-967 1.38".
Later/bigger valves can be fitted to this head..
67-1122
This is the Shooting Star A-7 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
