BSA Owners' Club Workshop Discussions

The BSA Workshop => Pre War => Topic started by: Pstockhi on 12 Dec, 2023, 19:31

Title: Piston
Post by: Pstockhi on 12 Dec, 2023, 19:31
I have a 1933 bsa w33-6 looking for a piston if anyone got one or even if there is another bike that uses the same piston
Thanks Peter
Title: Re: Piston
Post by: Ronnierockets on 16 Dec, 2023, 20:32
Hi Peter ,
I have a collection of pistons that came with my project
Is your bike a side valve model.?
I have a +20  piston ,flat top with pockets for the valves
88 mm in height     26mm from top of pin to top of piston   3 grooves for rings
Piston is 85.27 in width
Heplex4984 raised lettering and numbers on the inside of the piston