392 Gladiator V8 Hemi confirmed by Jeep CEO!

[ChrisNLA]

Noted, the Gladiator and Wrangler have heat issues. There has to be SOMETHING that can be made to work with more power, or to fix the heat issues.

If I recall, something can be done.

Completely wreck the front end and make the grille wider and taller - basically get rid of the tapered, narrow, short nose. If the front end was wider (like full body width) and taller both up and down) they would probably get more cooling into the vehicle and get some of the under hood stuff further way from the engine (more breathing room). You would probably lose the iconic narrow Jeep front end and the bumper as designed currently.

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[CrazyCooter]

@Glamisfan Remember what they said a UTV would never go over 100HP (we both bought the first one that did), then they said UTV's would never get a turbo, and then they said never over 999cc?

 

[ChrisNLA]

I think many of us, myself for sure would accept a lower tow rating. You said they already did that with a diesel model, so they 100% could do the same for a V8 in the gladiator, if they wanted to.

My sub compact tractor and trailer together weight around 5,500 pounds. I'm gonna need at least 6K out of the never gonna happen Hemi Gladiator

 

[ShadowsPapa]

If I recall, something can be done.

Completely wreck the front end and make the grille wider and taller - basically get rid of the tapered, narrow, short nose. If the front end was wider (like full body width) and taller both up and down) they would probably get more cooling into the vehicle and get some of the under hood stuff further way from the engine (more breathing room). You would probably lose the iconic narrow Jeep front end and the bumper as designed currently.

They poo-poo'd bringing cooling air up from the bottom for these because of the desire to maintain approach and departure angles.

So if you don't give a rip about towing and cooling -
all things can be done. Jeep can do it, with the warning about towing capacity going down, and likely even payload going down. If that doesn't matter, you'll see the V8
Does Jeep desire to keep best in class towing and avoid the on-the-edge heating issues, and do customers care about these running too hot, or towing capacity?

If not, Jeep will give you a V8 Gladiator.
If their market research says - there aren't enough buyers and people want cooler running with better towing, then they won't.

Nothing here is going to change that bit.

Can Jeep do it? The answer is yes.
Can they do it and keep the current tow ratings? No. (I forgot - what is the towing number for a JT with diesel????)
So, what's important to Jeep and the majority of their JT buyers.............

 

[ChrisNLA]

They poo-poo'd bringing cooling air up from the bottom for these because of the desire to maintain approach and departure angles.

Well that's basically what I am getting at. Go up and down and out with the front end and you can have more horsepower......at the sacrifice of the iconic Jeep front end. If you do not care at all about the offroad prowess, or it looking like a typical Jeep, then that's part of the solution.

It's one of the reasons why modern diesel trucks look like 18 wheelers these days. The front ends have to be two stories tall to shove enough cooling stack into them for these high horsepower diesels that everyone needs to pull the 33,000 pounds everyone is towing daily.

 

[jmr]

Dear @JeepCares put the Mojave hood on a 5.7 V8 JT to deal with heat. My opened hood scoop does a great job of evacuating heat just like the 2019+ Scat Pack hood did on the Challenger. Also the opened Rubicon vents work very well too, I've been running those on a 2024 2.0L JL Rubicon.

 

[ShadowsPapa]

It's one of the reasons why modern diesel trucks look like 18 wheelers these days. The front ends have to be two stories tall to shove enough cooling stack into them for these high horsepower diesels that everyone needs to pull the 33,000 pounds everyone is towing daily.

 

[ShadowsPapa]

Dear @JeepCares put Mojave hood on a 5.7 V8 JT to deal with heat. My opened hood scoop does a great job of evacuating heat just like the 2019+ Scat Pack hood did on the Challenger. Also the opened Rubicon vents work very well too, I've been running those on a 2024 2.0L JL Rubicon.

Maybe you mean put the 392 JLU hood onto the V8 JT?

 

[jmr]

The 392 JLU uses that hood for induction I'm suggesting use it for engine compartment ventilation. Similar to the 1st style Hellcat hood that was later used on 2019+ Scat Pack Challengers. The Durango and Chargers both have the opened hood scoop and the Durango has ventilators too. They are not used for induction but air flow into the engine compartment.

What did AMC do about heat when they offered CJ-7 with a 304 V8 it has a smaller grille than the JL/JT?

 

[Wheelin98TJ]

...Check Jrgunn5150s comments about how the Ram V8 is selling vs. the 3.6 - read back a ways and find his other posts on the topic.

He was talking about total unit sales.

What is available to sell?

How many days are Hemi Rams sitting on the lot vs the others?

 

[Oilburner]

I think that engine only had ~150hp

 

[ShadowsPapa]

What did AMC do about heat when they offered CJ-7 with a 304 V8 it has a smaller grille than the JL/JT?

Small engine, low HP, low heat output.

I think that engine only had ~150hp

Gross of 210, net, more accurate - 150.. You nailed it.

..........which supports my contention that to make HP you burn fuel and burning fuel generates heat. I would run larger fuel line to my carburetors if I take that engine to the next level - why? Because to get the over 1 HP per cube, and the speed at which it will run, it needs a lot more gas than the stock lines will handle. I've already installed a higher volume fuel pump.

Look at the JLU mpg comparisons - people say "yeah, but it won't be under load so won't take as much gas".. If that was fact, then the mpg ratings would be almost the same.
They burn more gas, thus have more heat to get rid of.

That 304 V8 was tiny, low HP, low heat output. Even in the other cars, they only had 2 row core radiators and no shroud, they were so easy to cool. In a Jeep, I can't recall the last one of those I worked on in the shop in Altoona, but I could see it going to a 3 row core if necessary. Beyond that, diminishing returns.

Can Jeep do it?
Yes.
Will it have the same towing and payload?
Extremely unlikely, I'd even say "no".
You could vent the hood and jump some other hoops - will it be worth it to Jeep?
Their marketing people already know this - is there a V8 slated for 2026?
Will there be one in 2027? If Jeep's market research, which doesn't include people screaming "take my money" on fakebook, says it's worth it and people will accept a low tow rating, then perhaps with a whole new model year, they'll have time to engineer it - crash test it and so on.

 

[jmr]

I bet the 2.0L EVO will be making it's way into the JT before any V8. It will be better on emissions and fuel economy and easier to meet current/future epa standards. I know it doesn't have the V8 rumble but it will outperform the current 3.6.

 

[RudeJeepin]

Small engine, low HP, low heat output.


Gross of 210, net, more accurate - 150.. You nailed it.

..........which supports my contention that to make HP you burn fuel and burning fuel generates heat. I would run larger fuel line to my carburetors if I take that engine to the next level - why? Because to get the over 1 HP per cube, and the speed at which it will run, it needs a lot more gas than the stock lines will handle. I've already installed a higher volume fuel pump.

Look at the JLU mpg comparisons - people say "yeah, but it won't be under load so won't take as much gas".. If that was fact, then the mpg ratings would be almost the same.
They burn more gas, thus have more heat to get rid of.

That 304 V8 was tiny, low HP, low heat output. Even in the other cars, they only had 2 row core radiators and no shroud, they were so easy to cool. In a Jeep, I can't recall the last one of those I worked on in the shop in Altoona, but I could see it going to a 3 row core if necessary. Beyond that, diminishing returns.

Can Jeep do it?
Yes.
Will it have the same towing and payload?
Extremely unlikely, I'd even say "no".
You could vent the hood and jump some other hoops - will it be worth it to Jeep?
Their marketing people already know this - is there a V8 slated for 2026?
Will there be one in 2027? If Jeep's market research, which doesn't include people screaming "take my money" on fakebook, says it's worth it and people will accept a low tow rating, then perhaps with a whole new model year, they'll have time to engineer it - crash test it and so on.

I had no problem cooling a healthy AMC360 in my 79 CJ5 with the original 304 radiator. Never dynoed, but should of been 300+ hp.

My JTRD has a tow rating of 6000 and payload of just shy of 1000 pounds.
I knew I was getting a lower rating than the Max Tow and was fine with it.
My trailer loaded is around 4k or so. I doubt I could load it to 4500 pounds. So, a low tow rating would be fine by me.

Honestly though, I doubt I'd buy a Gladiator with any hemi in it. Why would I when I have my ecodiesel???

 

[ecidiego]

This is insane. There's no 392 JT because Stellantis is lazy and uninspired. JLU 392 proves this. Muh tow ratings. JT manuals prove that isn't the reason, regardless of no manual JT for 2026. The engine works fine in the platform. No muh heat. The engine works fine in our platform. No 'but what if someone tries to tow 10k lbs.....'. They already do that with the 3.6. I have no idea why people are arguing that our platform cannot support a V8 when a Wrangler is the exact same platform. As with all trucks most people do not tow with them.

JT Mojave 392. No one who will buy a 392 cares about 3500lb...or less..tow. Do Wrangler buyers pass on the 392 because of muh tow ratings?

It would cost nothing for Stellantis to put a 392 into a Gladiator and rip us off for it. All the engineering is done. Muh crash testing maybe? Muh tow testing? Don't put a hitch on it then. Whatever somebody wants to do with aftermarket isn't their problem.

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