Believe the intake bolt pattern is different, and need new pistons and rods.

I just learning the gen3 hemi stuff also.

I ordered this book yesterday by Larry Shepard


SA404 New Hemi Engines 2003 to Present: How to Build Max Performance

Hopefully a good read.

I meant to follow up on your big block thread when i posted hellcrate was best option, went on vacation and forgot about it till now