Steel Crank for MGA 1622

[Malcolm Cox <malcox@napanet.net>]

Does anyone know of a source of steel (billet) crank for 1622 MGA motor?
Just broke my 2nd reworked (crack tested, shot peaned, cross drilled,
polished, nitrided and reground) stock crank and I am starting to
consider that it could be cheaper to invest in a billet crank than keep
feeding it reworked cast cranks every 2 years.
PS we have a medium tune engine, limited to 6000 RPM, but race typically
2500 miles a year, so it gets a pretty good work-out.
Malcolm, Napa