Quote Originally Posted by eternal21 View Post
Very much so, just wiring the instrument cluster would be the biggest concern. Add'l info: there is also a 2.4 non turbo engine, and it would also appear that the aforementioned 2.0 is the same engine in the Cobalt SS and HHR SS, as per ebay auction 130586906920.

I, for one, in order to increase gas mileage would strongly consider a 2.0L w/a 5MT, especially since there are aftermarket parts to boost the power of the 2.0L.
+1, my thoughts exactly (mileage AND power without adding the weight of extra cylinders). I wonder if you could just replace the VX instrument cluster with a Solstice / Sky / HHR / Cobalt cluster? You'd lose the TOD lights and odometer, but maybe something could be worked out? I suppose it depends on how integrated the clusters are.