A few differences between this and the MOPAR 402 (406) Crate motor. The big one is the actual heads, the MOPAR SB Crate motors are now comming with the R/T Magnum Heads which flow better then the regular Magnum Heads. As you already mentioned is the Roller Cam.

The big plus I see with the Blueprint motors are the Warrenty. Mopar offers none.....