Question Darren.............With the bore space limit on the Mopar, we KNOW, even if the Predator head was just as good as a good GM 4.840 head(which it's not) just the fact that you had to put it on a 4.560 bore versus a 4.600 or bigger, you are already down power out of the box.

In my own dealings with 4.840 GM stuff, much over a 632 is a waste, because a 4.840 motor can only have so big a bore and the heads only move so much air, so the inches don't seem to help much...........So the question is.......why make the Predator motor so big?