Big Block valve cover advice...

[Supercar_Kid]

I'm not sure if my covers would clear a power booster or not, I'd say they would because they aren't terribly tall, but I've never used them so it's hard to say for sure. They definitely won't clear full roller rockers though, they've got cast in drippers that would need to be removed. Even then not sure if they'd clear modern roller rockers. These also have oil fill holes cast in, as well as provisions to be machined out for PCV. Same covers as seen on the cover of the Motion BBC engine guides, 69 vintage.