General Motors unveiled the fully refreshed 2022 Chevy Silverado 1500 in September, introducing a long list of updates, changes, and upgrades for the highly-popular light-duty pickup truck. Among these was a torque boost for the turbocharged 2.7L L3B gasoline engine, which is now rated at 420 pound-feet at 3,000 rpm. However, that figure may in fact be underrated.
GM Authority has learned from sources familiar with the matter that the turbocharged 2.7L L3B gasoline engine in the fully refreshed 2022 Chevy Silverado 1500 could actually produce an SAE-certified 430 pound-feet of torque, rather than the 420 pound-feet announced previously.
We reached out to General Motors for comment, however, the automaker reiterated that “maximum torque is GM-estimated at 420 pound-feet (569 Nm) for the 2.7L Turbo High-Output engine.”
As a reminder, the L3B engine – initially introduced for the overhauled 2019 Silverado 1500 – is offered in High-Output form for the refreshed 2022 Chevy Silverado 1500. Prior to the 2022 model year refresh, the L3B engine was officially rated at 310 horsepower at 5,600 rpm and 348 pound-feet of torque at 1,500 rpm, while the refreshed model is currently officially rated at 420 pound-feet of torque at 3,000 rpm. Horsepower ratings remain identical at 310 between the pre-refresh 2022 Silverado 1500 Limited and the refreshed 2022-model-year vehicle. In fact, the high-output L3B engine replaces the naturally-aspirated 4.3L V6 LV3 and 5.3L V8 L82 engines to becomes the standard base engine for the refreshed 2022 Silverado 1500 WT, Custom, Custom Trail Boss, LT, RST, and LT Trail Boss models.
| Model Year | Engine | Horsepower @ RPM | Torque @ RPM |
|---|---|---|---|
| 2019-2021 Silverado 1500 | Atmospheric 4.3L V6 LV3 | 285 @ 5300 | 305 lb-ft @ 3900 rpm |
| 2019-2021 Silverado 1500 | Atmospheric 5.3L V8 L82 | 355 @ 5600 | 383 @ 4100 |
| 2019-2021 Silverado 1500, 2022 Silverado 1500 Limited | Turbo-charged 2.7L I4 L3B Regular Output | 310 @ 5600 | 348 @ 1500 |
| 2022 Silverado 1500 Refresh | Turbo-charged 2.7L I4 L3B High Output | 310 @ 5600 | 430 @ 1500 |
Further updates for the 2022-model-year refresh include new exterior styling, which GM Authority was the first to tell you about, as well as a completely overhauled cockpit on the LT trim level and above.
In addition to the High Output 2.7L L3B, the fully refreshed 2022 Chevy Silverado 1500 is also offered with the naturally-aspirated 5.3L V8 L84 gasoline engine, the naturally aspirated 6.2L V8 L87 gasoline engine, and the 3.0L I6 LM2 turbodiesel Duramax. The truck rides on the GM T1 platform, with production taking place at the GM Silao plant in Mexico, the GM Fort Wayne plant in Indiana, plus the GM Oshawa plant in Canada later on in the model year.
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What was wrong with the 4.3 as a base engine?
Hard to meet emissions
The 4.3 was great in it's day but it's outdated I mean a motor that is bigger displacement then the 3.6 V6 and less horsepower plus it would cost to much to make it DI... what I don't understand is why GM does not offer a beefer 3.6 V6 and put that in the Silverado it's in the Colorado it would make a great base engine no turbos... As with Ford their turbo engine is great but they break all the time and it's thousands to fix those turbos!
You're thinking of the old 4.3. It was all new in 2014, aluminum block, direct injection, 100 more hp, alot more torque. Had zero to do with the old 4.3. But GM never marketed it, and they kept the displacement the same. Big mistake because I've seen endless comments over the years from people like you that just assumed it was the same engine all along.
2.7l ....one word ....... JUNK.......
Have you put more than 120,000 miles on any GM V8 with cylinder deactivation?
All of GM’s gas engine lineup for half ton trucks is junk right now because of that evasive and problematic tech. There is a good chance that the 2.7 is the least junky half ton gas engine available from GM.
Which is to say you’d be better off buying a truck from some other company.
223,000 miles, LM7 5.3 with AFM. Tows 10,000 lbs regularly, has 6000 hours on the motor. Most reliable engine I’ve owned.
i think GM,. by the sounds of it instead of spending all this time and money on refining engines should spend more time ,energy and money on transmissons in the area of previous customers and present owners with issues which gm has not yet resolved... yes i am talking about the 8 spd. trans. ,gm is losing a lot of its loyal customer base with quality issues
8 speed is fine with TCM flash and new spec fluid. And the 10 speed is a great trans
I've driven empty and with about 7,000lb dump trailer in a hilly region with RST Silverado 5.3 8 speed and it was perfectly fine.
Prior to the change I would agree the 8 speed was bad. If you have one, get the service done on it
I don't mind the 2.7L as long as you aren't pulling more than 5k lbs. It's a nice torquey little motor that gets very good gas mileage. What frustrates me is that GM has basically abandoned their V8's. They have had the same power output since 2014.
The 5.3L could have 400/450 easily and the 6.2L could be at 475/525 I as well. There is no reason why GM shouldn't do it, it's really foolish! I WANT MORE POWER!!! I know I'm not the only one.
I think just a bit different. No 2.7T. Make a regular gas 6.2L the volume V8, with a 5.2L V6 base & Colorado, and a 7.0L for the special trucks.
Gas saving features are better pushed on the loaded interior buyers, like an add on powerboost hybrid 6.2 with extra hp over the regular 6.2.
Too bad then that with this torque boost MPG goes down further in the toilet with the wonderous 2.7. Official ratings on window stickers on recently arrived 2022 Silverado 4X4 models now has this engine making only 17/20. And that is with the cylinder deactivation and stop/start still in place!!!!!! Meanwhile at the Ford dealer next door the new F-150 4X4's with the 2.7 EB/10 speed and stop/start deleted are rating 18/24. How in god's name is this even possible GM?
EPA fuel economy rating is based on highest volume configuration. So if they sell more AWD crew cabs than any other configuration, then label fuel economy will take a hit. Original FE label was based on GM estimation that expects most 2.7L sales will be for the work truck, which is 10% - 15% lighter than a loaded crew cab. Since actual sales does not align with that estimation, GM has to update the label with EPA. And vehicle weight is proportional to fuel consumption, everything else being equal. For Ford, they have an big advantage with the all aluminum build. Trim to trim, Ford truck is 7% lighter than GM.
The extra torque has nothing to do with fuel economy label, because on regulated dyno cycles, you are no where near that torque level.
Ksmith if that's the real world MPG for these trucks then why even bother buying the turbo 4 cylinder over the two V8 engines? GM just could have kept the 4.3 V6. This probably boils down to a lot of factors but I am guessing that one factor in THE MPG of the turbo 4 cylinder is it's working harder with more weight to lug around.
This motor with the 10 speed is going to be awesome in the Colorado/Canyon.
My husband and I bought one of these just before we made our biannual cross country trip on the advice of the dealership-even though we were looking at a V8 that was 10k more expensive. We told him we haul a 16' cargo trailer with at least two bikes (Ultra & Deluxe) and about 6-8 bins of stuff. We are at this moment getting 6.2 mpg. No, we're not in the mountains. As soon as we get back, we're trading it in for either another V8 or diesel. GMC can keep this gas hog! Even my '73 Lincoln got better gas milage!!!