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Posted By: Red Lapierre Question on A 10 - 06/22/18 3:03 pm
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.
Red
Posted By: Irish Swede Re: Question on A 10 - 06/22/18 9:51 pm
"Twin carb" A10 heads are simply 1954-55 heads with the removeable single-carb manifold. Later A7 and A1
Posted By: Irish Swede Re: Question on A 10 - 06/22/18 9:57 pm
"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.
Posted By: trevinoz Re: Question on A 10 - 06/23/18 12:23 am
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.
Posted By: Red Lapierre Re: Question on A 10 - 06/23/18 1:16 am
Thanks to the both of you. Getting ready to sell a lot of A10 and don't want miss lead some one.

Posted By: chaterlea25 Re: Question on A 10 - 06/23/18 11:08 pm
Hi,
Lots of details on BSA stuff here

http://atlanticgreen.com/a10dph.htm

John

Posted By: trevinoz Re: Question on A 10 - 06/24/18 9:57 pm
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.
Posted By: Spitfire Ken Re: Question on A 10 - 06/25/18 12:20 pm
If you are interested in selling the 67-1106 head please send me a PM
Posted By: Red Lapierre Re: Question on A 10 - 06/26/18 12:38 pm
If I do Ken I will get a PM to you.1st (might end up on an A7 not sure yet)
Red
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