Aussie Speed centre bolt v6 chev rocker covers are tall enough to clear roller rockers,have a full molded gasket retaining inner & outer flange,cast in breather/shroud ,available in cast  & polished finish.suit astro,gmc typhoon,cyclone ,somona,s10 chevy pick ups & vans & popular with bower boat owners & hotrodders.We welcome trade  inquiries  from NZ,United States of America,Canada,Australia & other world wide traders.take the time to look at our full range of products that are Australian made & used world wide.