• Mar 13th 2010 at 1:27PM
  • 46
Back in November, during Chrysler's seemingly endless business plan presentation, Ram trucks chief Fred Diaz told the captive media audience that the new 6.4-liter Hemi gasoline V8 would likely appear in Ram's heavy duty trucks. Fast forward to today, however, and it would appear that the big Hemi is now off the table. PickupTrucks.com reports that the 6.4 Hemi will instead be exclusive to Chrysler's potent SRT vehicles. Chrysler VP of product development, Joe Veltri, says that the 6.4 is designed for performance, not the grunt work truck buyers demand of their vehicles.

PickupTrucks.com notes also that Veltri sees a need for Ram to get gas engine that delivers more power and torque than the currently-available 5.7-liter Hemi, but that the likely course of action will involve building off that engine, rather than looking to adapt the SRT lump for truck duty. Why the drive to add more gas offerings in the diesel-dominated heavy-duty truck category? Emissions regulations, natch. Increasingly strict rules mean that diesels are becoming commensurately more costly to produce and sell, and Chrysler sees the ratio of diesel to gas engines offered becoming much closer in future years than it is today. Head over to PickupTrucks.com for the full skinny.

[Source: PickupTrucks.com]

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    • 1 Second Ago
      • 5 Years Ago
      In other words high horsepower but average torque. Should be interesting to see if they can adapt the 5.7L's cylinder deactivation for the 6.1L+ engines. I love the GC SRT-8 but the AWD coupled with the 6.1L make for single digit MPG numbers in real world applications.
        • 5 Years Ago
        No, it is the short gearing, lack of eEGR, lack of VCT, lack of cylinder idling, terrible aerodynamics, and high curb weight leads to terrible mileage.
        • 5 Years Ago
        Terrible mileage AND terrible power per liter.

        Look at Ford's 5.0, it is within 20 TQ/HP of The 6.1 Hemi and within 10TQ/HP of GM's 6.2 v8, all while returning excellent gas mileage and producing less emissions.

        'no replacement for displacement' no longer applies.
        • 5 Years Ago
        The 6.1 is old, and is devoid of modern features VCT, or VVT
        yet it still returns 14/22 (stick) which isn't that far off the new Mustang 5.0 16/24
        Both have skip shift.
        5.0 has electric power steering.

        GM's 6.2 in truck applications had VCT, and now added cylinder idling.
        The LS3 should have VCT and 450hp
      • 5 Years Ago
      Just more wasted engineering and money resources at Crisisler... They should have designed this engine for "dual" purpose from the beginning... Stupid!

      Compared to Ford's new 5.0 V8 coming in the Mustang GT "and" F150... thats Smart and Ford will spread the development cost over 250,000 annual unit sales vs. Crisisler might get 10,000 if they are lucky!!!
        • 5 Years Ago
        The "new" hemi architecture IS designed for both car and truck applications. The 5.7 version in the HD trucks is tuned for more low end power, then in the Ram 1500 or the cars. The 6.1 is just a bored out 5.7, and the new 6.4 is just a bored/stroked 6.1. The 6.4 has already been a crate engine for quite some time, at least 3-4 years now. Its just a matter of tweaking it to meet emissions for production cars.
      • 5 Years Ago
      Another model discussion on AutoBlog.

      Cylinder deactivation doesn't save any fuel either, it's a myth. All the vehicles from Chryslers to GMs and so fourth use just as much fuel as the V8s that don't fire all eight cylinders on the open road. It's a marketing gimmick primarily.

      I had a G8 GT before I purchased a GXP. The GXP doesn't use any more fuel than the GT and it doesn't "buzz" on the highway when it's firing four cylinders ,it runs on all eight, all the time, the way it's supposed to be. Both cars average 17-19mpg overall. I'll take the one that produces 415hp for the fuel consumed thanks.

      I also highly, hightly doubt any SRT HEMI is going to have MDS. Like Chrysler said years ago, it wasn't appropriate for a performance application. It's the same reason the GXP doesn't use deactivation and the Cadillac V cars. And it ruins the refinement of the engine to boot.

        • 5 Years Ago
        Trishield, AFM/whatever you call it does give better fuel economy. It's not a magical 30% or anything, it's more around 8-12% on the highway. And it's fairly inexpensive to add to an engine on the manufacturer's side of things. And your G8 isn't going to be making 415 hp unless you're redlining it on a track, you're probably only using 80 or so HP on the highway.
      • 5 Years Ago
      Why would I buy a car like this and give a damn about gas mileage?
      • 5 Years Ago
      Drill baby, drill.
      • 5 Years Ago
      When are we going to get a $1gal gas and energy tax in this country? I don't think we can afford to bail-out Chrysler a third time. But I love cars; not importing oil.
        • 5 Years Ago
        Quote: ""When are we going to get a $1gal gas and energy tax in this country? I don't think we can afford to bail-out Chrysler a third time. But I love cars; not importing oil.""

        Isn't there a Blog post somewhere about some shoddy new KIA transport appliance for you to ejaculate over?

        WOW! a new KIA!!!

        • 5 Years Ago
        Yeah congress is more interested in lowering taxes and seeing if we can add another digit to the debt clock.

        ( you unlock an achievement and Thomas Jefferson outfit if you do that, so it only makes sense )
        • 5 Years Ago
        Two things:

        1. SRT8 Chargers, Challengers, and 300Cs make up a very, very small percentage of the automotive landscape.

        2. The 6.4L is expected to be cleaner and more efficient than the 6.1L it is replacing, the fact that it makes more power than the 6.1L means that it is win-win for everybody.
        • 5 Years Ago
        Considering that their economy is doing better than ours & their fuel costs 2-3x what ours does, i think we could handle paying 85 cents more per gal, especially if it meant it was going towards modernizing our grid and developing green technologies.

        5-6$/gal didn't stop people from driving their V8 SUVs to work alone everyday.
        It hurt businesses but you could reduce the tax for them, no prob.

        There needs to be more incentive to stop pissing away the world's finite oil supply. CAFE has helped, but it's obviously not doing the trick.
        • 5 Years Ago
        if you gradually phase in a gas tax of $1.00/G and all the money gets pooled up and equally shared to every household in america you end up with a system where we still all have the choice to buy and drive any vehicle how we see fit but they guys who choose to commute to work alone in their SVT raptor will be subsidizing the guy who decides to ride a bike or the bus to work.

        tax what you want to discourage and subsidize what you want to encourage

        totally deficit neutral plan and the gov only touches the money to redistribute, all the actual change comes from how people choose to use that money and the potential changes in their life that they take to spend less money on transportation

        • 5 Years Ago
        Most likely never. Congress has better things to piss money away on then deal with increasing taxes on gas
        • 5 Years Ago
        Nothing keeps business afloat like even higher taxes.
      • 5 Years Ago
      I think it would be cool to see a nice clean diesel HEMI in either 5.7 or 6.4 liter, but that's just me.
      • 5 Years Ago
      Wow rather than invest in products that consumers want and rescue the company, how exactly is this going to save them considering the gas prices. Not surprising their sales are tanking...
        • 5 Years Ago
        Do you people even read the blogs these days, or just complain? Right now the SRT8 Challenger IS the Chrysler vehicle most people want to buy. And, they are working on developing better small efficient cars for the US market. Fiat and Chrysler have only been together a year and it takes longer than that to bring a new vehicle to market.
      • 5 Years Ago

      The diesel idiocy in this country seems unstoppable. Approaching the ravine at high speed and still accelerating, pure lunacy.

      6.4 liter V8 gasoline in a work truck is better than 3.0 liter 6 cylinder diesel? No, really?

      The level of ignorance shown is so unbelievable that one must wonder who is getting paid by whom to make such decisions. This from somebody who usually gets great laughs at the expense of conspiracy theorists.
        • 5 Years Ago
        Not to mention the price of diesel will increase once shipping gets back to pre-recession levels. Diesel prices always rise before gasoline and they're the last to come down from the price hike.
        • 5 Years Ago
        The diesel idiocy begins and ends in Washington.

        A diesel engine makes more sense for almost everything with wheels. Until you stick $5-7,000 (soon, $10-12,000) in unproven, mileage killing federally mandated emissions controls behind them.

        Then they make no sense at all for anything except towing a bazillion miles a year, and product planners know it.

        • 5 Years Ago

        "The diesel idiocy begins and ends in Washington."

        Well, yes, that's what I meant when I said that somebody is getting paid by somebody else to make idiotic decisions - I didn't mean Chrysler. I should have been more clear on that.
      • 5 Years Ago
      Interesting to that engineering companies are also looking at making large gas engines to replace diesels on class 7-8 trucks! With all the electronic controls improving some believe it is possible to build a large gas engine that would get better fuel mileage then a diesel.
      • 5 Years Ago
      I have never understood the diesel v. gas emissions thing. Europe, which is clearly more paranoid about carbon emissions, thinks diesel is fine. The only thing I've been able to come up with is that the oil companies like to sell lots of fuel, and if everyone switches to diesel, they'll be selling less. But that's a little cornball. So I don't know what to think.

      But special performance engines, while they may not make $en$e, are cool. Chrysler always good at seeing the big picture (e.g., marketing a few marquee products can sell the lesser iron).
        • 5 Years Ago
        go to a large european city, the air is crap

        in this country we decided that diesels need to abide by the same clean air standards as gasoline cars. to get emissions levels down on a diesel requires a small scale chemical factory on board the car that costs as much or more than a hybrid system

        the more studies they do on the effects of diesel show how bad it really is. even relatively low amount can have been shown to have significant long term impact on the health of a population.

        inshort, diesels are not common in the US because we like clean air more than mpg

        • 5 Years Ago
        USA vehicles have such stringent safety and emissions regulations because WE DRIVE SO MUCH. No particular engine or model of car is "bad" - It's the TOTAL MILES we drive. Since we use 3/4 of all fossil fuel on Earth for 1/5 of the population, driving less with more MPGs is the first place to start (as well as insulating older homes and installing solar thermal air-space heaters).

        I'm fine if someone wants to buy a 6.2L Hemi SRT Mopar whatever....as long as we reduce our total energy consumption one way or another.

        Likewise, two years ago I wrote here that congress should "vote for a temporary moratorium on some EPA and DOT vehicle regulations, to permit the sales or imports of tiny fuel efficient cars, combined with a $1gal gas tax" I'm sure vehicles that meet 20006 European emissions and safety laws are quite fine, but we drive too much.
        • 5 Years Ago
        I was in Paris recently. On the same trip I drove from Venice to Rome. I'm not sure I agree that the air is that much worse. Sure, on the auto strata you can smell diesel exhaust more strongly than you can here, but not on the streets. People don't spend much of their life on the highway, and "bad smell" really isn't a huge pollution issue.

        I grew up in a paper mill town. If you regard a bad smell as pollution, that mill was far more offensive than any diesel, or diesel highway for that matter. There's a refinery nearby where I live. You can smell that literally 10 miles away, maybe more. All to make gas?

        I was under the impression that aside from soot and formaldehyde (harmless if you don't eat it), diesel was actually a little cleaner. The filters have brought the soot down. Some by using an afterburner, which is pretty insane (and cool).
      • 5 Years Ago
      Well, justifiable if you consider always dragging a gas station.
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