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So Ummmm

Probably no one would do this, but my thinking was much simpler:
- Take the 6.7
- Chop off 2 or 3 cylinders
- Modify the cam / crank shaft and manifolds to match the cylinders count
- Focus on parts commonality vs optimizing every gear for the exact torque required.

Work it a little harder to keep up with the competition power wise, which is more in line with how diesels like to be operated anyway.

Obviously no modern engine is operated this way, because everything gets super optimized for the exact application, vs focusing on parts commonality.

Just a crazy idea.

Nothing about that idea is simpler….
 
Probably no one would do this, but my thinking was much simpler:
- Take the 6.7
- Chop off 2 or 3 cylinders
- Modify the cam / crank shaft and manifolds to match the cylinders count
- Focus on parts commonality vs optimizing every gear for the exact torque required.

Work it a little harder to keep up with the competition power wise, which is more in line with how diesels like to be operated anyway.

Obviously no modern engine is operated this way, because everything gets super optimized for the exact application, vs focusing on parts commonality.

Just a crazy idea.
I recall reading about a 4 cylinder Cummins was testing at the same time as the V6 that Nissan used, that 4 banger would of been great fit for the Dakotas and 1500's and lasted longer then the junk eco diesel they used...
 
We should know something before long. Tim says 25 new models in 18 months, first big announcements coming June 6. 25 new models or updates, the gasser has to be in that.
 
We should know something before long. Tim says 25 new models in 18 months, first big announcements coming June 6. 25 new models or updates, the gasser has to be in that.
They’re going to take away another 5 HP which will lower the take rate even more so they can justify making the Cummins the only option.
 
The problem is, for the PW the old 6.4 is the only option. I do not disagree that they did not want to sell 6.4 engines this year, guessing for a number of reasons. Shifting production, maybe something new coming out...who knows.
 
The problem is, for the PW the old 6.4 is the only option. I do not disagree that they did not want to sell 6.4 engines this year, guessing for a number of reasons. Shifting production, maybe something new coming out...who knows.
Oh, I’m a huge fan of the Hemi myself. I’d much rather have it with a HP bump up to like 450 or so.
 
Oh, I’m a huge fan of the Hemi myself. I’d much rather have it with a HP bump up to like 450 or so.
The Hemi is pretty solid but where the Cummins would blow it away is towing in the mountains because of the turbo. I tow a lot in Colorado and other Western States.

I'd seriously consider that engine if they use it and get rid of my very troublesome diesel. I'm really waiting to see how the '25 Cummins pans out, if they're pretty much trouble free I'll dump the '22.
 
The 6.4 blows out manifolds and lifters. With out that? Not a bad engine. But a power bump is also needed. However, the Octane with Turbo and diesel like torque.. oh my. Same boat with Colorado. The Million dollar highway is a real test and the 6.4 scream at high rpm to go 30MPH. Not sure the 6.4 likes that revving. Granted, I have the Vat of Lead transmission, not the 19 and up ZF
 
The 6.4 blows out manifolds and lifters. With out that? Not a bad engine. But a power bump is also needed. However, the Octane with Turbo and diesel like torque.. oh my. Same boat with Colorado. The Million dollar highway is a real test and the 6.4 scream at high rpm to go 30MPH. Not sure the 6.4 likes that revving. Granted, I have the Vat of Lead transmission, not the 19 and up ZF
The 6.4 can run at redline all day long and not care. I had no problems towing 9k pounds of Airstream up the Million Dollar Highway in my last (2020) Hemi 2500. It had no issues breaking the speed limit up the Ike with that same trailer either.
 
The 6.4 blows out manifolds and lifters.
This again. please share any proof. Any at all would help us out. You’ve mentioned the manifold before but you’re the only person that has mentioned this

If it has happened before, it is certainly not common from what I can tell. I cannot find any information on this. If it was common, it would be very easy to find information about, and there would be fixes for it.
 
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12K -15K loads will change your mind. 9K is pretty light for a heavy duty.
I was VERY surprised when my stupid '22 broke again and I pulled a 11k toy hauler to Colorado with our '21 1500 quad cab Hemi with 3:91 gears. The power actually wasn't too bad, even over a 10k pass. The light weight of the truck was.

Even more surprising was the 7 mpg versus the 9 on the 3500 dually. I expected more of a difference. The sole thing that seemed a bit on the edge was oil temps. The coolant and trans temps were good.

I would think the 6.4 would be much better.
 
There are You Tube videos with rows of NEW 6.4s in the shop with these issues. I am not uploading the 6,000.00 dollars in manifold repair receipts or videos of the clanking. It is the day in the life of a Hemi. Crazy to think Diesel emissions are crushing a diesel so much on efficiency and function. That is why I am leaning away from Diesels. The Diesel should be destroying the Gasser. The 6.4 is very solid when it comes to cooling except its paper thin Radiator top. You will blow that towing at some point, thats fun. An aftermarket radiator would fix that. Or, Ram could just update it with a metal top.
 
12K -15K loads will change your mind. 9K is pretty light for a heavy duty.
Nah, I've pulled 12k no problem, just didn't own a travel trailer that was that weight. Will it be a bit slower? Yeah. Is it slower than is reasonable for moving a combined 20k+ pounds? Nah.
 
There are You Tube videos with rows of NEW 6.4s in the shop with these issues. I am not uploading the 6,000.00 dollars in manifold repair receipts or videos of the clanking. It is the day in the life of a Hemi. Crazy to think Diesel emissions are crushing a diesel so much on efficiency and function. That is why I am leaning away from Diesels. The Diesel should be destroying the Gasser. The 6.4 is very solid when it comes to cooling except its paper thin Radiator top. You will blow that towing at some point, thats fun. An aftermarket radiator would fix that. Or, Ram could just update it with a metal top.
I didn’t ask about cooling but this sounds like more BS.

I have asked before for any shred of evidence that the 6.4 BGE has manifold issues and you can provide zero evidence except you say it happened to you. Specifically, you said manifold bolts and coolant passages. You have even claimed that the 2019 manifold was designed to crack.
 
There are You Tube videos with rows of NEW 6.4s in the shop with these issues. I am not uploading the 6,000.00 dollars in manifold repair receipts or videos of the clanking. It is the day in the life of a Hemi. Crazy to think Diesel emissions are crushing a diesel so much on efficiency and function. That is why I am leaning away from Diesels. The Diesel should be destroying the Gasser. The 6.4 is very solid when it comes to cooling except its paper thin Radiator top. You will blow that towing at some point, thats fun. An aftermarket radiator would fix that. Or, Ram could just update it with a metal top.
Literally can't find a single post about a cracked radiator in a 2019 or newer.
 
As far as rarity of radiator? One tiny shop in a tiny town called for a new one with out even seeing my truck while I was sitting waiting for a tow because he knew that they also blow. Usually near the upper radiator hose
 
Exhaust? Here you go

Lifter actually but mine has sound like that for 20K

I can find thousands of posts and videos, but whats the point. Here are some articles


Introduction - Hemi Exhaust Manifold Issues:​

If you drive a Dodge Ram with a HEMI engine, you’ve likely heard the infamous "tick-tick-tick" of an exhaust leak. Today, we’ll break down why the HEMI exhaust manifold leak is such a common issue, what symptoms to watch for, and how to fix it without losing your sanity (or your savings) with this common automotive repair.

Why Exhaust Manifolds Fail on Dodge Ram HEMI Engines

Two primary reasons why:

  • Subpar Factory Hardware
    Unfortunately the original exhaust manifold bolts are notorious weaklings. They often snap due to the intense heat cycles, leaving you with gaps and leaks.
  • Design Flaws
    The manifold itself has varying thicknesses causing improper heat distribution that result in cracking and warping.

Symptoms and Effects of Exhaust Leaks

While there may be other symptoms, these are the most common:

  • That Annoying Ticking Noise
    The most obvious symptom of an exhaust manifold leak is a ticking sound, especially noticeable during a cold start. It’s like your truck is trying to remind you it’s due for attention.
  • Reduced Engine Performance
    A leak can disrupt the exhaust flow, and confuse oxygen sensors leading to lower engine efficiency. Translation: Your HEMI won’t feel as mighty as it should.
  • Check Engine Light (CEL)
    Exhaust leaks can trigger the CEL, thanks to skewed readings from the oxygen sensors.
  • Higher Cabin Noise and Heat
    If the leak is bad enough, you’ll feel it—literally. Exhaust gasses escaping near the engine bay can make your truck sound louder and feel hotter inside.
 
Nah, I've pulled 12k no problem, just didn't own a travel trailer that was that weight. Will it be a bit slower? Yeah. Is it slower than is reasonable for moving a combined 20k+ pounds? Nah.

Again I don't have the ZF, so that i am sure effects my performance. But ZF plus a touch more power I have to imagine would be awesome
 
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