Originally Posted by Moparrbust
I am in need of "over 600hp" but will never consider putting a SLR engine in the car. Have you ever seen the price of that motor!!! I totalled out a SLR at work a couple years ago and the insurance company STILL wanted $250,000 for the complete(wrecked) car. In a perfect world I'd like to swap in a 2007+ SL55k motor since it starts off with 510hp(or 516......I can't remember) and can be easily modded to well over 600hp.
That is why I didn't mention the SLR engine at first but technically it will work. As far a 2007+ engine, it could be more of a challenge but it it used the Bosch ME 2.8 ECU it might work well. The ME 2.8 ECU was introduced when the three valve engines were introduced. IF you change to a different type of ECU, you might not be able to use the STAR system to code it and you could end up re-wiring a lot of stuff. you would want to look under a few hood before attempting this. However the approach I took would also make it very easy to put a SRT engine into a n/a car.