I assume you mean the front pulley cover spacing washers that allow a bit of cooling air through the cam belt housing? If so, that kit is just a set of spacer washers and some slightly longer allen head screws, available from Morgan I think. The cheaper alternative is discard the gasket and just fit some spacer washers yourself, as that is all the kit is.

If you mean the torx drive pulley bolt that can make an unplanned exit through the front cover, there is a different one with a bi-hex drive available from S&S I believe.