King Crimson - Starless and Bible Black
Vaguely psychadelic, but it's pretty damn trippy even in comparison to their other stuff. Either way it's a must own, I fucking love this album.
Pink Floyd - Piper at the Gates of Dawn
Pretty sure you had this already, but just figured I should remind you how much of a mindfuck it is (as if you didn't already know).
George Harrison - All Things Must Pass
Only a few moments of out there stuff (mostly toward the end of the second disc / third vinyl), but I got high to this album once and I Dig Love almost sent me to another plane of existence. Either way everyone should own this album, probably my 3rd favorite of all time.
The Jesus and Mary Chain - Psychocandy
Here's a weird one, probably doesn't quite fit the description you're after but it fucks with my head something fierce. Good stuff, first heard it when I was 3. EDIT: Scratch that, I was 6 when the album came out it seems. Either way I heard these dudes at a very young age.
Mr. Bungle - California
Just a brainkiller, simple as that.
PS: Thank you SOOOOOOOOOO much for that Ufomammut, it's still totally kicking my ass.
