Review on Spectre Performance 5270 Valve Cover for Big Block Ford: Ultimate Engine Protection and Performance Enhancement by Brent Shaeffer

good and cheap. But be careful! The slots for commercially available FE seals are not wide enough. You either have to change the gasket or sand the covers, which I did. I don't recommend them if you are on a very low budget. Pay extra to get good reproductions. They might be functional with some tweaks, but the manufacturer's lack of attention to detail speaks volumes.