Please bear with me, I not even sure if i'm asking this in the right forum, I have a 2000 road king and a new 2013 103 engine, will a transmission from an 08 mate the new engine to the 2000 frame. I've asked several people and have gotten several different answers. Thank you for your help.

 

The 08 trans will bolt to the 2013 motor but as far as the motor and trans bolting to the frame no. It can be done as long as your fabrication skills are up to par, but as far as as a direct bolt in no. The 07 and up bikes are whole different animals than the early twin cams.