I have A10 Heads that are
67-1549 guessing is big valve
67-1126 ? (on what I think is a 59 SR?)
67-1106 ? twin carb.
These were used on Super Rockets 67-1549 big valve
What were these other used for ?
Thanks for the help.
"Twin carb" A10 heads are simply 1954-55 heads with the removeable single-carb manifold. Later A7 and A1
"Twin carb" A10 heads are simply 1954-55 aluminum heads with the removable single-carb manifold.
Later A7 and A10 heads had the single carb manifold cast as a part of the head itself.
BSA's USA distributors began marketing a dual-carb conversion kit to adapt the removable-manifold-type heads
for two carburetors in about 1963 or '64.
67-1106 Road Rocket 1954/5
67-1126 Road Rocket 1956/7 & Super Rocket 1958/9
67-1549 Super Rocket 1960/3 Called the big valve head. Also some had the 49 ground out and 71 stamped in its place. Not sure what the difference is.
Thanks to the both of you. Getting ready to sell a lot of A10 and don't want miss lead some one.
Lots of details on BSA stuff herehttp://atlanticgreen.com/a10dph.htm
On the 67-1106, the original 1954/55 heads had a date cast along with the foundry marks. e.g. K54.
The later heads made for the speed kits don't have a date.
If you are interested in selling the 67-1106 head please send me a PM
If I do Ken I will get a PM to you.1st (might end up on an A7 not sure yet)