I think you are wrong , as i have ,as you can read in the previous post,have replaced the single cluster dash in my V8 VT2 SS Commodore with a three window cluster from a V6 VT Berlina. The tacho redline is the same in both starting at 5500rpm. The only think that does not work properly is the tacho !!!!! I talked to Holden and they confirmed that there is a different setting for V8's and V6's. (Normal rpm @110km/h is 2000 and now is 1400)
achimw