Do they have the R4 blocks as well? OR would a Ritter XR-block work?
Are they having those made? Or are they getting them from who-ever in Australia started copying them? I don't think that the XR block would work with the P5. If they could make it work then IMO you would have a winning combination. I an not sold on the P7 deal I don't think it would work as well as a P5. But what do I know. LOL
From what I read the Mopar castings were a bit thin, and tended to crack in the runners after porting.