I know its not a Toyota part, but would be good for that high powered conversion. There are heaps of cars around that run under 10 seconds with these babies in them, so its worth a look. I have a couple out of r31 skylines, which means they can be fitted to Z's and 1600's, unlike the R200's that are found in things like r33's and z32's. Anyway they are the mechanical variety, good condition.
Any interest?