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Which 2027 engine will you choose?

Zane
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2027 Engine Choice for Silverado and Sierra  

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Zane Senior Enthusiast

Zane

Posted
Posted

Now that some limited details and rumors are starting to trickle out about the options for the 2027 Silverado and Sierra, I'm curious- does the rumors of the larger displacement Generation 6 engines change your future buying choice? Vote in the poll and let me know your thoughts below, i'm seriously interested in what people are thinking!

  • Like 2
smit303 Enthusiast

smit303

Posted
Posted

If the 5.7 has increased HP and torque over the 5.3, I would go with it. Especially if it still runs on regular gas.

newdude Senior Enthusiast

newdude

Posted
Posted

At this point I just want them to up the quality control.  Both V8s will probably be a good improvement over the now 12 year old Gen 5s we've had, but they NEED to get the reliability up especially after the 2021-2025 window range with the current ones.  

 

Any word on when/how the new trucks will be revealed?  Detroit and Chicago auto shows have come and gone, which leaves NYIAS or perhaps some sort of special event like the T1s had.  I'm thinking at this point the Gen 6 engine gets announced right before or as a part of the NCM Corvette Bash this year late April because 2027 Grand Sport, that's only if the trucks don't show up between now and the Bash.  

 

We do know the Gen 6 engine will be recycling the "LSX" RPO codes as LS6 seems to be pretty confirmed for the Corvette 6.7.  

  • Like 5
smit303 Enthusiast

smit303

Posted
Posted

6.7 equals roughly 409 cubic inches.  A strong motor from the sixties. I hope the new one will be as reliable.

  • Like 1
asilverblazer Senior Enthusiast

asilverblazer

Posted
Posted
7 hours ago, smit303 said:

6.7 equals roughly 409 cubic inches.  A strong motor from the sixties. I hope the new one will be as reliable.

Obviously, no relation to the historical engine... 

...or any other displacement similarities.

 

Not likely, but given the 'current' regulatory environment I wonder about the take rate of a 'simple' V8 engine that removes some of the more problematic features. More comparable with an early 2000's LS, no displacement on demand, no variable water pumps, no variable valve timing, no direct injection. Somewhere around 6 liters, with 400hp, 450ft-lbs. Keep the 10-speed auto and see what kind of mileage it gets. 

  • Like 2
Atlas Senior Enthusiast

Atlas

Posted
Posted

In a 1500 I'd look at the new 5.7 (rumored). It's probably going to be a boost over the 5.3 and for a gas 1500 that's all I'd really want. 6.7 is just going to be too thirsty and for a 2500 or heavy towing I'd want a diesel.

 

Interestingly, the oil pan for the 3.0 was redesigned with an odd indentation which doesn't seem to serve any purpose on current trucks. It's speculated that it was possibly reformed for the new generation trucks. If GM solves the thrust bearing and coolant control valve issues, I think the 3.0 will be a solid contender in the new gen.

 

At any rate, I won't be buying a first or second year new design truck/engine. Had bad luck with Jeep a long time ago and buying a Pentastar engine when it was new. And now GM's got me on edge with this 3.0 (wondering if the thrust bearing will disintegrate). GM has a lot of work ahead to restore my/any faith in reliability.

KARNUT Senior Enthusiast

KARNUT

Posted
Posted

I’ve always bought first run new models. The only time I had an issue was with the 94 Ram dually automatic. They had clips holding the transmission lines together. They would vibrate out and separate. They ended up giving me my money back towards a 95 V-10. That blew up at 40k miles and they gave me my money back towards an another 95 V-10 automatic. That was flawless. All were used to haul my tractors. Two years later I switched to a power stroke. Flawless and a beast. If I go with GM again it will be a lease then possibly a purchase. I just don’t trust them. I want to go back. 

  • Like 1
NavyVette Enthusiast

NavyVette

Posted
Posted (edited)

I bought a 2014 6.2 and had no issues.
I bought a 2019 5.3 and had no issues, except the paint was the wrong color and the engine was too small.
I bought a 2020 6.2 and had no issues, except a flat tire.

I bought a 2024 6.2 and have no issues except AEV envy 🤣

Edited by NavyVette
s10dragracer888 Enthusiast

s10dragracer888

Posted
Posted

You know, engine reliability issues can be mitigated with better internals and the removal of AFM/DFM/DOD, but I do understand that not everyone can afford that. You can get it machined to be a much better engine, but the fact that you have to tear it down to bare bones to fix all of GM’s blatant ignorance and catastrophic cost cutting crap is a huge problem.

 

My other concern is what kind of transmission will be behind these engines. The 6L- and 8L- transmissions were both largely unreliable and very problematic, because just like prior transmissions, their design changed from ZF’s reliable design to GM’s cost-saving junk. Paired with the reliability issues of the 10 speed and the debacle of the valve body (thanks, NextGen for a PROPER FIX), I’m very skeptical as to the reliability of the new generation drivetrains, engines AND transmissions. This behavior from GM and lack of action on GM’s part in regard to finding a real remedy has me wondering if going to an older Toyota would be a better investment. I love my Chevrolet trucks, and I always have, but with the bean counters in charge and engineers being ignored, it is disappointing to see that this may continue to be a problem. It seems like GM and their effort to be penny wise and dollar foolish will be their demise. This practice of cost-cutting and cheaping out has steadily kicked them in the can since they changed ZF’s original transmission designs commissioned in the late 80’s for use in the early 90’s mid and full size pickups, sedans, coupes, and fleet vehicles. I truly feel that the fall of GM’s empire is inevitable at this point. It’s only a matter of time. It’s a repeat of history, and we are well on the way.

  • Like 1
asilverblazer Senior Enthusiast

asilverblazer

Posted
Posted
16 hours ago, s10dragracer888 said:

...going to an older Toyota would be a better investment...

If I was going older - any pre AFM (2007 1/2 ton) would be my go-to.

 

5.3, with the 4L60E = easy 200K powertrain if not 300K, just there won't be much truck left around it.

  • Like 1
s10dragracer888 Enthusiast

s10dragracer888

Posted
Posted
42 minutes ago, Grumpy Bear said:

Anyone know if this platform utilizes "Spray Bore" technology?  If it does....I'm out. 

Spray bore???

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      All valid.   But.  How many people really do this?  Its few and far between.  Most just drop it into D and go.  
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