I’m sure some probably have done this. But not sure if they’ve done it this way. Below is the Kingdom Rodimus with the Power of the Primes Hot Rod head mod. This head is a slightly smaller. But not by much. But it works! I know some dislike the Kingdom version cause of all the hard angles on the face. Making him look old or like an addict.

If you want to do this to yours? All you need to do is shave off the ball joint on the neck peg. Doing so will allow the POTP head fit without having to cut cut and trim the inside of the head. Plus it will if you want to switch back to the Kingdom head. And will retain all the movement. If you don’t want to use it? Just put it in the bottom compartment on his trailer.

Note the Kingdom Rodimus head was repainted to a gray color instead of keeping the shiny silver. Cause it made the sculpt look a lot better. The gray softened the face.

either option works as a substitute until Hasbro does give us the Studio Series 86 version of Rodimus Prime. Which I feel we will see in 2026. Especially since we have both SS86 Megatron and Galvatron coming in 2025.