High on Fire - look for the song "king of days" if you have not heard them Electric Wizard - "dope throne", enough said Immortal - listen to the song "sons of northern darkness" Nuclear Holocaust
(none of these are 80's I realize)
Check out these: Pentagram Acid King Bongzilla Weedeater Black Boned Angel Bongripper Eyehategod Sunn O))) Nadja