The short answer to your question is yes, but because Peter Green and Billy Gibbons both used a variety of tones, especially BG, it's hard to say what sound you are looking for. Black Dogs will do some of the blues sounds, but not the more Fender like tones. For them you need either Stormy Mondays or PG Blues. A set that some people use to get the coverage is a Black Dog bridge with a Stormy Monday neck, though I like the Black Dog neck pickup too.
You don't say what guitar you are putting the pickups into, or which tracks you like. ZZ Top had very different sounds in different decades.