Yet another dimension being added to this story...

Dave now wants to do a really fat 215 version of the Hemi for a class where they compete with 215s agains Holden 202s and Ford 3.6s. With the smaller bore it might not be suitable to use the Rallis head because the inlet valve is moved further from the centre of the bore... it might be shrouded by the cylinder wall in a 215 block.

So it might be a bit more interesting than we thought.