Next-Gen 2027 Chevy Silverado Prototype Spied Testing

[64BAwagon]

3 hours ago, asilverblazer said:

Interesting, I haven't heard any rumors or information about the displacement changes on the 5.3 and 6.2; along with nothing new about the 8.3 diesel.

 

I wonder if the 6.6 currently in the HDs will be moving down to the light duty, which would be odd because all the tuning and engineering done on that engine was not done for the light duty consumer.

I dont have info on the details of the 6.6 in the 1500's other than the displacement and it will have AFM/DFM crap on it and likely a sizeable EGR so if its the same as the one used in the HD it will ruin all that makes the L8T good. 

The 5.3 and 6.2 are gone, not just changed. 

The 8.3 Duramax is entirely new and will have changes to the charge air cooler system along with other items. 

 

[64BAwagon]

44 minutes ago, C/K Man said:

Both the Chevy and International versions of the joint venture trucks use the current Duramax. 

I believe it is detuned from the pickup application. Thats been common for the Dmax in applications other than pickups. 

[newdude]

2 hours ago, 64BAwagon said:

I believe it is detuned from the pickup application. Thats been common for the Dmax in applications other than pickups. 

 

 

Yes but it is a different RPO code due to there being a smaller turbo, different fuel injectors and different state of tune. 

 

Prior generations carried the same RPO code as the pickups and de-tuned but LBZ was skipped.  They used the LB7 2003-2004, the LLY 2004.5-2006 and then went straight to LMM for 2007-2009.   

Edited March 17, 2025 by newdude

[revrnd]

'If it's not broke, why fix it?'

 

My pet peeve is the 'chrome' inlay in the floor trim for the front doors. I can see if a person isn't careful w/ their boots getting in & out they will be scraped up in no time.

 

Does GM's braintrust not know that some of us use them as trucks, not cars?

[ledmircy]

Do not lower the trucks, clearance is one of the top needs for people who buy trucks to use them for their intended purpose. 

[Black02Silverado]

I wonder if the rear window leak will be finally fixed?

[revrnd]

1 hour ago, Black02Silverado said:

I wonder if the rear window leak will be finally fixed?

 

Is it around the outside where the glass meet the body (not the @ the sliding portion)? If yes, maybe tell the beancounters 'X' amount of urethane is required to effect a proper seal...

[newdude]

1 hour ago, Black02Silverado said:

I wonder if the rear window leak will be finally fixed?

 

25 minutes ago, revrnd said:

 

Is it around the outside where the glass meet the body (not the @ the sliding portion)? If yes, maybe tell the beancounters 'X' amount of urethane is required to effect a proper seal...

 

 

 

[customboss]

Deleted 

Edited July 25, 2025 by customboss

[revrnd]

6 hours ago, customboss said:

https://stocks.apple.com/AsCCG7kSgTf--NfeHTydsiA
 

RECORD PROFITS for GM company. Too bad products are disposable. 

Not sure where you get that from the article...

[revrnd]

In reference to Ford offering 2 tone paint I just saw an F150 with charcoal as the primary upper & lower colour & red for the secondary. It's probably too late for the body design to be changed, but I find 'the swoop' on the 1500 fender & door doesn't lead itself to a 2 tone paint, unless it was the less popular version from back in the day where the lower portion of the truck was the secondary colour.

[customboss]

On 7/22/2025 at 3:16 PM, revrnd said:

Not sure where you get that from the article...

Totally 180. I

messed up. 

[Atlas]

I prefer the rear HDMI ports over what appears to be a copy of a C4 ZR1 exhaust tips on a pickup.

 

No doubt the new engines will be great. Not excited that the interior appears to favor a giant open billboard screen for the instrument cluster versus the nicely inset and shrouded cluster the trucks have today.

 

The rear window appears to be fixed, it's a one-piece rear glass design with a portal for the center opening section like the Fords have. It's probably more cost effective to build that way, too.

 

Going from a 327 back to a 350 or 400 V8 should make a lot of the oldtimers happy

[revrnd]

30 minutes ago, Atlas said:

Going from a 327 back to a 350 or 400 V8 should make a lot of the oldtimers happy

Im not sure if any of the braintrust realised that some people would be disappointed when the base V8 was reduced to a 5.3, probably not born when 327s were common. Likely never heard of 'bigger is better' either.

 

Only thing I can think of is to differentiate it from the 6.0 L which were never offered in the half tons.

 

[Chevy Big 10]

Is there any talk of these new engines being changed to DOHC instead of OHV with this new upcoming engine generation?