I dont know if this might help someone,but while on e-bay a seller aluminum-man,has all sorts of rare intakes and parts many for inlines.He also had patterns for ford OHV valve covers.RUTHERFORD and KOUKE.I seen intakes for inline;flat ford six,packard 8,slant 6 and flat6 chrysler,offy,pinto side draft,+ reg chevy and ford stuff.not cheap but worth looking at.Hope this help someone.