I'm a purist myself & prefer the correct mfg engine to go in the correct mfg car/truck.
The Gen3 HEMI suffers from a lack of aftermarket support & popularity.
To say it doesn't have potential is a broad statement.
There are examples of fast Gen3's, though limited.
The GM & Ford OEM has given great support to the aftermarket.
Chrysler has not. It's that simple.
The Gen 3 in it's OEM form, seems to outperform all other makes, the Challenger being the exception.
The SRT Challenger has been like bringing a very sharp knife to a gun fight.
That should be fixed when the "Hell Cat" HEMI is released.
I'll put my Wife's 300C up against a SS Impala or Eco-Boost Taurus any day.
I'll put my kids HEMI RAM 1500 up against a Silverado 5.3 or F150 5.0 any day.
I still can't understand why the GM guys are so happy that when their LS engine blows up, that they brag about going to the salvage to get a replacement for cheap.
It would seem to me, that after the 3rd or 4th time, the price advantage wears off.
I agree with a previous post, it depends on the build. You have to compare apples to apple.
Everytime that has been done before by various magazines, the MoPar seems to come out on top.
This friend of mine is a diehard Chevy guy. He also owns a machine shop.
He builds small block dirt track engines from all 3 brands.
No matter what, the MoPar is always 25-30 horsepower better when dynoed than the Chev or Ford.
MoPar or No Car!