Commodore supercharged V6 L67 Buick valve covers, these covers are much taller than standard and require the alternator spacer kit. Can be used as a standard replacement valve covers how ever they do not use the factory rubber gasket. The rocker covers will also fit with Yella Terra Platinum Roller Rockers.
Pictured with L67 rocker cover that uses factory oil filler cap, alternator extension mount kit.
The rocker covers are CNC machined inside for valve spring and roller rocker clearance