Just found out from Prefix, that Mopar released a 6.4 VVT version of the G3 aluminum block.
Also did not know that mopar has a drag pak version of the Ali G3. I will hopefully have more info tomorrow about it. It apparently has a different lifter location. Not 100% sure, as I was on my cell phone through the truck speakers.
Man if your building a G3 there are plenty of options out there.
Matt