I need schooling - old vs. new engines

@Rat Bastid your replies are very interesting but it sounds like your experience lies with racing engines far and above the intensity of what the vast majority of us mortals mess around with on here. I watched one of those PERA webinars about overlap flow and how valve orientation affects efficiency based on the operating RPM range, and how true cross-flow Hemi heads don't have any real advantage until 9000+ rpm and at speeds below that canted-valve heads have the advantage.

I think using that background as a basis to argue that the G3 Hemi is a loser overall is kind of half-baked, if that's the right term? Very few of us had the privilege to spend decades in the Pro Stock world and honestly it seems to be quite a different world than that of the shade tree self-educated hobbyist. If I'm wrong please correct me but your responses seem to be all based off engines that are so extreme it's hard to understand or connect how they actually relate to production street engines.

Also in my mind the crank-driven oil pump has the advantage of not relying on the timing set to drive it. Granted I haven't heard of timing chains in pushrod V8s breaking very much at all but I think that idea combined with the cost was what the engineers were thinking back in the 1990s when the G3 Hemi was on the CAD "drawing board".

I'm also interested to see how they progress as racers mess with them more and more. The old engines have the advantage of having been around for 50+ years so they have that much more aftermarket and racing development time behind them. G3 hemi has "only" been out 20 years and people didn't really start messing with them heavily until about 5-8 years ago. And on that note, the LS platform got a 6-year jump on the Hemi when it was first released.