Sure that 5.0 is getting better fuel mileage due to all that electronic BULLSH*T all over killing cylinders as you "Cruise" down the highway..Even the FACTORY figured out what you seem to have missed...There's NO WAY a 500 HP V8 Engine will get 25 MPG without overdrive and SELECT ENGINE DISPLACEMENT...I think it's great you see all those cool videos on Youtube and actually think you too can do it, but I live in the real world working on repairing some of these VD engines...With all that Variable Valve timing sure, just TRY and get a few more ponies out of it by installing an aftermarket cam ...
All that CRAP adds to your Small block you are trying to get 500 HP out of..Unless you plan on Variable Displacement on your new Hemi, or small block, you WILL get the same if not worse than a Supercharged, overdriven, fuel injected big block cause that little engine will scatter it's parts all over the ground working HARDER to produce the same power of a "Lazy" Stroker big block. Just ask Randy Bolig of Mopar Musclemagazine about that badass Valiant Small Block with Tunnel ram and twin fours...Face it, it's all about cubic dollars today.Have YOU priced a junkyard Supra 2JZ Engine????Good golly, I could BUILD a 572 Stroker making the same power NORMALLY ASPIRATED For what they want for just that engine....Sure a $65K Small block car, with VD and VVT and fifteen computers MIGHT get better fuel mileage than a Carb'd Big Block making the same HP, but Install all that Sh*t you put on that small block and the big block gets a few MPG's less than your small block, will actually live at that power level and Make around double the power...Game over, thanks for playing.....
Game over? Seriously? I think you're probably showing your knowledge level and your age here. Seems like you are extremely familiar with old school muscle. And you know what, great for you. Seriously. Talk to thedodgeboys about all that cylinder kill crap he has on his car. Willing to bet you your car that he'll say he doesn't have any on it. And guess what, he gets 20 mpg. And pretty dang close to 500 hp. Also I never said 25mpg, I said 20mpg which is very doable.
Also I wasn't talking about price (although I was looking at building the hemi for about $6-7k even with a stroker kit $4-5k without), I was pointing out that a 2jz has massive capabilities especially for a 6 cylinder. Also any motor, no matter what it is. If properly built will not scatter it's pieces all over the ground. The modern day hemi is good for about 500hp on stock internals, if you want to go higher than that it's time to put some better parts in the bottom end. Granted you SHOULD know this considering you are all knowing. Not to mention you "apparently" work on these cars all the time. IF a motor is properly researched out, and built you should not have many problems with it. And those problems are more than likely to be troubleshooting. As for building a car with a newer small block costing $65k, I guess it could cost that high.......if you paid someone to do all the work! Putting a newer hemi into my car even with the cost of the build and the fact that most of the parts in my car would be brand new I was only looking at a $35k build. And that is for getting the car exactly as I would want it, money not being an option.
Don't know who you've been talking too, or where you get your knowledge but it is obvious to me that some of your info is definitely off.
This part here, is just for you
Game over, thanks for playing!
*Edit* I find it interesting that you didn't bring up any of the failing points I had for the big blocks. Just attacked what you thought were problems with the newer small blocks. Honestly surprised that you haven't pointed out how well big blocks handle, or how light they are (must barely weigh 12 lbs!) or the fact that they leave plenty of room in the engine bay, making them easier to work on than small blocks.
Lets face it, you have a preference. I have a preference, everyone has their own preferences. Trying to force opinions on other people simply doesn't work, as I think we have proved here. People can build what they want for the reasons they want to build it. It's not our place to condemn them for it.