A tall, 2F embossed valve cover with the threaded oil fill cap.
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Man... I want one of these... love the "TEQ" embossed on the cover... far preferable to the "TOYOTA".
As an aside, I think your idea of powdercoating is the right one @Will Van. That or paint. I originally polished mine... but the aluminum does oxidize if you don't keep it buffed. It isn't like a chrome finish.
In the end I went back and high-temp painted it. Far easier to keep clean looking... just wipe it off when it gets dirty.