A stock gen 2 hemi had its issues; super heavy pistons to fill up those giant chambers and some pretty horrible valvetrain geometry (and heavy of course). Building a 2g hemi is also on my bucket list but it will be after i build a 3g hemi (old 5.7 block, eagle heads) so i can see 40 years difference in technology and apply as much of that as i can to the old 426 design.