I have a 2004 Dodge Ram 1500 4x4 4 door SLT. It has the 5.7 Hemi. I am curious if a 6.1 Hemi out of a Charger will bolt up to my existing transmission. I know I will have to change the ecm and possibly the motor mounts, but just curious if the 6.1 will bolt up. Any and all info is appreciated. Thanks!!!