incorrect
the only difference between the 2 motors are compression ratios.
they both use the same rods, head studs, headgaskets. the cranks are physically the same save for the bolt pattern... why they didnt just redesign the flex plate i dunno.

I've built turbo kits for plenty of high compression motors and they make power..
10:1 is low, really. the na motor can make almost the same amount of power that the srt motor can make.