Valve Data

[Bob Culver]

I dunno what the racers use but the larger and sportier versions of the BMC A engine seem likely. Presumably a variety is available for hot Minis. Our libraries carried comprehensiev workshop manuals until recently. Maybe some do in UK.
I presume in the old Tranco list material 2 is obsolete XB although I suspect original valves were something lesser still.
Curious to know what currrent valves are. Presumably "modern" non magnetic.