Have you seen many Toyota 22r valve covers? Hard to tell from your avatar, but you may have an older engine, or at least valve cover. Yours looks kinda rounded. The 79-83's are much more rounded than the later models...I know there's another way to tell...some Saturn shape on the side of the block, but I don't remember which one has it and which doesn't. Someone else may chime in. Or search "which engine do I have" or something like that...can't quite remember what the thread was.