Is that with a head gasket? By the looks of it it clears and I doubt it would cause much shrouding, given the valve opens away from the cylinder wall, plus it's on the short turn side where there's usually less flow anyway

No gasket.
The G3 is an LS. The nod goes to the LS for price, parts and volume. If everything was equal pick your poison. Matt

The Apatche is like an all out race LS head, even the $1200 ported LS heads posted don't compare except in price, sure peak flow is sort of close but everywhere else in the curve they spank it. The "it won't fit a 5.7" myth needs to go away to boot, it will clear without a notch on the smallest GEN III bore ever made. The 6.2 head is even better as it flows the same but is thicker and better material than even the LS race ported head. The 6.2 head is T356 heat treated to carry away heat faster allowing more boost or compression than the 319T5 LS head, dual spark plugs, superior mixture tumble of the gen III reduces timing lead requirements and allows more compression so it is more than just air flow that makes the Apatche way better than the LS CNC junk, it is just the rods first pistons second that kills the hemi and the LS is only slightly better in reality. The only reason the LS is better has nothing to do with the engine alone but the price of aftermarket support. The LS head posted up will not fit the most common LS motor ever made you are stuck with a 6.0 or bigger and they (6.0s) suck, one of the motors we replace the most in my repair shop and they are no cheaper than a 5.7 in the JY. A 5.3 is cheap but the factory heads are puny in comparison and the head linked above don't fit. The chevy does shine when you buy an aftermarket intake under $200 and any hemi intake is $600 and up, or headers that start at $700 and go up instead of $100. You can take the $400 you save on intakes and $600 you save on headers and buy a complete engine management system and get the LS running not so much the Hemi.

SCAT we need a rod to drop in place of the stocker
KB we need a drop in piston
MSD we need an affordable controller
We need a generic header for $150
We need a chinese copy of the un available mopar intake for $250

There is NO entry level stuff for the Hemi, sure you CAN spend as much on LS stuff but they also have entry level stuff where they sell in shear numbers.

The heads and block are better no question, we just need the rest of the stuff to compete with the LS and so what if its made in china at least then we would have something.

I thought you could still get Apaches for $1250 a pair? The LS guys always act like they only spent $2000 to run 9's but just like 99%% of every bowtie bozo I've ever known, they're full of bs. For every 1000hp LS that has lived, there are 15 that scattered I promise.

All good points and info. Seeing that the Apache works on a 5.7 is great as well. If they are still available for cheap, that's even better. As for the head flow, most of the LS guys don't care because they are all turbo guys. If you were building a n/a stroker combo, it'd certainly be hard to compete with the Hemi.

Air flow still matters on a blown engine. 20 CFM can normally make 40 hp on a NA V8... 20 CFM on a 15 PSI pressurized V8 engine can normally make about 80 HP so it does make a difference.

I know I know not exactly apples to oarnges here but... Take a look at the stupercharged chevy crate 6.2 engine VS hellcat crate in the other "hellcat crate" thread. Or you can look at the new supercharged vette VS hellcat debates all over the net, no question the hellcat makes lots more HP at the crank, a much heavier car running with (winning or losing by a very narrow margin)the lighter vette.

The motor would certainly make more power at the same boost level with a head that flows more. A lot of guys seem to keep it simple on the cylinder head side because you don't need 400 cfm heads to make 1000 HP. Hell, plenty of people are doing it with 300 cfm heads. I think my old Procharged 451 had the potential with hand ported RPM's. Now who wouldn't like a set of Apaches getting fed by some big ass turbos. Like you mentioned before, cheaper intake options would be great. Some Chinese turbo header options would be great too, but I don't think that will ever happen.

And of course the better flowing head would make more power on less boost, but so many people would rather take the cheaper road and just put more boost to it. It's too easy to do.

I love the green on your charger by the way.


Back to the subject though more boost means more heat, head gasket sealing effort (though I have not heard any issue with either of these engines) detonation, better fuel, better turbos... it is not without cost.

I would not mind a small premium to keep it a mopar engine just like I don't mind spending a little more on a Cuda than a camaro or Dakota over a pile of junk S-10, the problem is it costs a lot more unless you are talking premium parts VS premium parts, there is no entry level hemi stuff.

You're absolutely right. More boost is certainly harder on parts and you really have to stay on top of the tune when you push the limit. Thanks for compliment. I wouldn't mind an early Barracuda either, just not a 64-66. I can't say I'm a fan of those. My apologies to those that are.lol

Fast
Reliable
Cheap
Pick 2 of the 3.

No truer words have ever been spoken.