Hi all,
Looking for collets and valve spring cups for a BSA sidevalve build.
Collets are 29-0410, same as OHV A7 or A10 but also common to M20,M21,C10
Valve spring cups are 66-0221 and are for a single spring. Same as M20,M21,C10. OD 1 1/4, ID 7/16, height 5/16
Tried the usual local suppliers but no joy.
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