What 348/409 parts did Mickey Thompson make? I just bought a crossram (those aren't my valve covers). I haven't been able to find M/T valve covers (see photo). I'm using Moon valve covers instead and a finned timing chain cover.
I have never seen M/T valve covers for a w motor. Not even in old ads. Maybe someone has a sixties era catalog they can check? My bet is, he never made them. That thing sure looks good with the finned valve covers and the M/T ram log.