It has been mildly modified to be in the 330-340 range. Stock was 306 but even then it had more torque than an SRT. Also keep in mind that torque is what gets you moving and this engine has a very broad and flat torque curve compared to the SRT engine. Peak hp is needed for top end performance AMG cams, AMG intake, tune and a few other goodies really woke up the top end performance.