I am not so impresses by power per liter. I know many evo's making 600+ on 2.0 ltrs. So let's talk about that, less than half of the size making more power. Currenlty there is one on stock block making about 600, so not even about a built motor. My point is for cost and what it is,I was thinking somewhere in the 6xx hp range. Size of the engine doesn't mean a whole lot in todays world.