Quote Originally Posted by copterdoctor View Post
now if you really wanted to do something special.... Take the entire powertrain from a new cobalt SS Turbo.

The 4 cylinder engine is light, comes with a manual gearbox, and has more power and torque than both V6's you are looking at (260hp). (the cobalt gets over 30mpg highway with that engine too)



With the weight reduction you would get by going to that engine, the car would handle amazingly well. The wide track of a grand prix with significantly less weight from a smaller gearbox and engine. It's also really easy to turn up the boost on that engine to well over 300hp. (people have done it already reliably)
see yeah direct injection has made swapping new engines into older cars a pain. It's a whole different animal and especially the VW FSI engine swaps. Usually people have to swap the entire harness and I mean the ENTIRE harness to get the engine to work.

Also, I'm figuring out that GM isn't nearly as modular as VW.

Now for the cobalt swap. That would be cool to swap in an ol' Opel engine now wouldnt' it, however, there is still a mounting issue that would need to be dealt with. It is a good idea but not nearly as feasible as the 3900 swap.