Part# AS0098P - Polished & finned pair of AussieSpeed valve cover for a 8 cylinder Holden V8 engine. This rocker cover is made to clear Yella Terra roller rockers on 253 and 308 engines. It is made from sand cast aluminium, it is thick and comes with rubber grommets to take readily available aftermarket standard PCV and push in breather caps. They will clear larger than standard diameter valve springs for racing applications.