Is the 6.2-liter engine reliable?
The 6.2L is considered to be very reliable for an engine of its class and size. The motor puts out a lot of horsepower and famously was used in the first generation Ford Raptor. The 6.2L engine should have no problem going over 200,000 miles, but there are a few known issues that do arise with them.
The Chevy 6.2 engine and the transmissions have proven to last in excess of 250,000 miles and beyond. With regular service intervals and proper maintenance they can last 10-20 years or over 250,000 miles. Yes, this General Motors developed 6.2-liter V8 with Dynamic Fuel Management (DFM) is a real engineering wonder.
If you treat your truck right and routinely service it, your 6.2-liter can last up to 500,000 miles. If you treat it like an ordinary work truck and beat it up, it won't last long.
The 6.2 surpassed 5.3 in terms of horsepower, with a rating of 420 hp. Chevy 6.2 engines have higher torque ratings at 460 lb-ft of torque. This engine is also mated to a 10-speed automatic transmission. GM 6.2 engines have bigger cylinder bores (4.06) than 5.3.
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GM recommends using 93 octane gasoline for its top-of-the-line 6.2-liter V-8-equipped trucks. The owner's manual does state as low as 87 octane is acceptable for the engine. However, to achieve maximum performance and fuel economy you must use 93.
The GM engines, L84 5.3 V-8 and the L87 6.2 liter EcoTec3 V-8, with build dates between September 2020 and March 2021 seem to have the most problems with defective lifters. These engines use the active fuel management (AFM) and dynamic fuel management (DFM), and at times the lifter will get stuck or lock into place.
The block is stamped 6.2L, however, for the 5.3L truck motor they use the same block so the 5.3L would have the 6.2L stamped on the side as well.
The 6.2L with DFM — the largest and most powerful gas V-8 in the segment — is manufactured at GM's Tonawanda engine plant in New York. It is SAE-certified at 420 horsepower (313 kW) and 460 lb-ft of torque (623 Nm) and paired with a Hydra-Matic 10-speed automatic transmission.
The 6.2L engine could be described as a 6.2L big-block modular. Most big-block engines have more than 400 cubic inches of displacement and they weigh more. And the small-block engines have a smaller displacement. The 6.2L engine, though, fits into a 4.02-inch bore.
What truck has the longest lasting engine?
The Honda Ridgeline comes in at first place in the category of trucks most likely to last 200,000 miles. About 3 percent of older versions of the Honda Ridgeline have reached the 200,000 mile mark.
- 8 Ford 5.0 Coyote.
- 7 Nissan 5.6.
- 6 Hyundai 5.0.
- 5 Chrysler 6.4.
- 4 Toyota/Lexus 4.0.
- 3 Chevy LS3 6.2.
- 2 Chrysler 5.7.
- 1 Chevy Small-Block 350.

Toyota UR 5.7L V8
Even in the last decade, no other pickup truck has been nominated as the most reliable and cost-effective over two times like Tundra, which houses this massive engine. This engine has won eight times and that makes it one of the reliable and best pickup truck engines for you.
In most cases, the vehicle will run fine, but you may experience less power and a decrease in gas mileage. In more serious cases, you may hear engine knocking or valve chatter because the fuel isn't burning right. These things could damage your engine and you should take it to your mechanic.
Using regular gas in an engine that requires premium could void your warranty. That is most likely to happen if using regular causes severe engine knock or pinging (premature ignition of the fuel, also known as detonation) that damages the pistons or other engine parts.
6.2-liter V8 with 420 horsepower and 460 pound-feet of torque (standard in AT4X; available in SLT, AT4, Denali, and Denali Ultimate)
The bottom line on GM lifter problems
So, far GM has not issued any national recalls. Luckily, it seems that the lifters problem does have a fix that is working. “When we can get the parts, it's a relatively quick repair and it's a one-and-done fix,” the anonymous dealership technician said.
In vehicles with active fuel management (AFM) or dynamic fuel management (DFM), lifters collapse when the cylinder is deactivated so that the camshaft cannot open the valve when it's not in use, preventing some cylinders from consuming fuel when only some of the engine power is needed.
More specifically, the GM lifter problems affect both the 2019-2021 Chevrolet Silverado and GMC Sierra pickups as well as their GMT T1XX platform SUV siblings — the Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon and Cadillac Escalade.
The Chevy Silverado 1500 ranks as more reliable than the Ford F-150. According to the J.D. Power Dependability Study, the 2019 Chevy Silverado 1500 is more reliable than the 2019 Ford F-150. The 2019 Toyota Tundra is actually the most reliable option, but it's time for other trucks to get some time in the spotlight.
Which Silverado engine is best?
But what is the best Chevy Silverado engine? The available 6.2-liter V8 engine generates 420 horsepower and 460 pound-feet of torque, making it the most potent in the lineup. When equipped with this V8 powertrain, the 2021 Chevrolet Silverado towing capacity reaches up to 13,300 pounds.
LS7: Best.
LS Engine. Ever. In a world with 650hp Camaro ZL1s, along with even more powerful Hellcats and Shelby Mustangs, it's easy to forget the influence and importance of the LS7-powered Corvette Z06. Before it, there were precious few production cars that boasted horsepower levels of 500 or greater.
Are GMC models higher-quality than Chevy? While GMC models tend to be higher-end, the brand also provides bare-bones offerings, while Chevy, for its part, provides luxury options too. On the whole, however, GMC models tend to be more extensively outfitted with specs and features than Chevy.
Under the hood is a 6.2-liter V8 with a rating of 420 hp and 460 lb-ft of torque. This engine is also mated to a 10-speed automatic transmission. Here are the results. We clocked our new Trail Boss 0-60 MPH at 9.46 seconds at a mile above sea level with three people in the truck.
In a car engine, LS stands for luxury sport, meaning it is majorly used in high-end cars that offer great performance like the Chevrolet. In a Chevy, the LS engine is the main V8 mainly used in General Motors' line of rear-wheel-drive cars.
The 6.2L with DFM — the largest and most powerful gas V-8 in the segment — is manufactured at GM's Tonawanda engine plant in New York. It is SAE-certified at 420 horsepower (313 kW) and 460 lb-ft of torque (623 Nm) and paired with a Hydra-Matic 10-speed automatic transmission.
The 6.2L engine could be described as a 6.2L big-block modular. Most big-block engines have more than 400 cubic inches of displacement and they weigh more. And the small-block engines have a smaller displacement. The 6.2L engine, though, fits into a 4.02-inch bore.
The LS3 6.2L is the 430-hp standard engine in the Chevrolet Camaro SS and the all new RWD Chevy SS. It is a fantastic combination of high technology and uncompromising performance. Our LS3 crate engine comes complete, from the Chevy SS-specific oil pan to the ignition system.
But what is the best Chevy Silverado engine? The available 6.2-liter V8 engine generates 420 horsepower and 460 pound-feet of torque, making it the most potent in the lineup. When equipped with this V8 powertrain, the 2021 Chevrolet Silverado towing capacity reaches up to 13,300 pounds.
What does LS stand for on a Chevy motor?
LS stands for “luxury sport” and is what is featured in the names of most of the base models in the Chevy lineup. You'll find the LS label in certain trims of the following Chevy models: Chevy Trailblazer. Chevy Trax. Chevy Equinox.
LS7: Best.
LS Engine. Ever. In a world with 650hp Camaro ZL1s, along with even more powerful Hellcats and Shelby Mustangs, it's easy to forget the influence and importance of the LS7-powered Corvette Z06. Before it, there were precious few production cars that boasted horsepower levels of 500 or greater.
Are GMC models higher-quality than Chevy? While GMC models tend to be higher-end, the brand also provides bare-bones offerings, while Chevy, for its part, provides luxury options too. On the whole, however, GMC models tend to be more extensively outfitted with specs and features than Chevy.
Under the hood is a 6.2-liter V8 with a rating of 420 hp and 460 lb-ft of torque. This engine is also mated to a 10-speed automatic transmission. Here are the results. We clocked our new Trail Boss 0-60 MPH at 9.46 seconds at a mile above sea level with three people in the truck.
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L92 Engine Blocks.
L92 Block Specs | |
---|---|
Material | Aluminum |
Displacement | 6.2L / 376 c.i.d. |
Bore Dia. | 4.065 in. |
Stroke | 3.622 in. |
Displacement: | 6.2L / 376 cu. in. |
---|---|
Vehicles: | Chevrolet Corvette, Corvette Grand Sport, Camaro SS ,SS, Pontiac G8 GXP |
Introduced: | 2007 model year |
Discontinued: | – |
Predecessor: | LS6 / Gen 3 Small Block |
It was first launched in the all-new 2019 Silverado 1500 (fourth generation) and 2019 Sierra 1500 (fourth generation). Displacement: 6.2L / 376 cu.
For many years the 454 (7.4-liter) V8 was the top choice from GM, while Ford had the mighty 460 (7.5-liter) V8. In 1999, Ford put the 460, out to pasture when the 6.8-liter V10 was introduced in the new Super Duty pickups.
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Capacities and Specifications - 6.2L.
Item | Capacity |
---|---|
Engine oil (with oil filter). | 6.6 L |
Engine coolant. | 20.2 L |
Brake fluid. | Between MIN and MAX on brake fluid reservoir |
Front axle. | 2.6 L |
Cylinder deactivation will continue to be available with the turbocharged 2.7-liter four-cylinder, 4.3-liter V6, and 6.2-liter V8 engines. The change will run through the 2021 model year.
What is the biggest Chevy gas engine?
The ZZ632/1000 is a 632-cubic-inch V-8 delivering 1,004 horsepower. DETROIT – Chevrolet Performance today introduced the ZZ632/1000* crate engine — the largest and most powerful crate engine in the brand's history. The naturally aspirated 632-cubic-inch V-8 produces 1,004 horsepower and 876 lb-ft of torque.