Old thread but thought I would answer
NO
Manta was a 185 KW v8 HSV
Don't think any vs hsv was a v6
I know with the VL there was a f2o that was a hsv or sv and a turbo 6
And in the vx I think they made a xu6 witch was a supercharged v6
That is the only hsv in 6 cylinders I know of