Chevy Truck Engines by Year

Few things in the truck world spark more conversation than what’s under the hood of a Chevy. For decades, Chevrolet has built engines that earn loyal followings through genuine performance on the road and on the job site. Whether you’re sorting through Chevy truck engines by year for a new purchase or just want to understand what makes each generation tick, this guide walks you through the key options, changes, and improvements that define Chevy’s engine history.

If you’re already ready to shop, you can browse our new Chevy truck inventory to see what’s currently available.

Why Chevy Truck Engines Have Stood the Test of Time

The history of Chevy engines is really a story about listening to truck owners. Chevrolet has consistently evolved its lineup to match what drivers actually need, whether that’s more towing capacity, better fuel economy, or a smoother daily commute. The result is a broad range of engine options that don’t force buyers into a one-size-fits-all decision.

Each generation builds on the last, folding in newer technologies while keeping the durability that truck owners have come to expect. Pair that with a nationwide parts and service network, and it’s pretty clear why so many buyers keep coming back.

Quick-Reference Engine Specs by Generation

Chevy Silverado Engines: 2010–2013

5.3L and 6.0L V8 Options

The 5.3L Vortec V8 (LC9/LMG) was the go-to Silverado engine during this period, putting out 315 hp and 335 lb-ft of torque in pickup applications. Built with an aluminum block, Variable Valve Timing (VVT), and Flex Fuel capability, it paired with a 6-speed automatic and struck a solid balance between towing ability and everyday drivability.

For buyers who needed more muscle, the 6.0L Vortec V8 (LY6/L96) stepped up as the heavy-duty answer. Rated at 360 hp and 380 lb-ft of torque, it used iron block variants tuned specifically for 2500HD and 3500HD applications, where consistent heavy towing was the priority.

6.6L Duramax LMM and LML Diesel

The 6.6L Duramax LMM served through 2010, producing 365 hp and 660 lb-ft of torque with an Allison 6-speed transmission, capable of up to 13,000 lb conventional towing or 16,700 lb with a fifth-wheel hitch on a properly equipped dually.

In 2011, the LML replaced it with a meaningful upgrade: 397 hp and 765 lb-ft of torque, capable of up to 17,000 lb conventional towing on a 2500HD and 20,000 lb fifth-wheel towing on a 3500HD at launch, with dually configurations rated up to 21,700 lb. Both variants improved emissions control without sacrificing output, and the LML’s torque gains made it one of the more capable diesel truck engines available at the time.

Third-Generation Silverado Engines: 2014–2018

The third generation introduced the EcoTec3 family, which wove Direct Injection, VVT, and Active Fuel Management (AFM) throughout the lineup. These technologies made efficiency a genuine feature rather than a tradeoff.

4.3L EcoTec3 V6 and 5.3L EcoTec3 V8

The 4.3L EcoTec3 V6 (LV3) served as the entry point, producing 285 hp and 305 lb-ft of torque from an aluminum block. Paired with a 6- or 8-speed automatic, it supported up to 7,600 lb of towing. Direct Injection and VVT gave it a level of refinement that made it genuinely capable for everyday use.

The 5.3L EcoTec3 V8 (L83) became the most popular option in the lineup, turning out 355 hp and 383 lb-ft of torque with towing capacity up to 11,300 lb. The combination of Direct Injection, VVT, and AFM cylinder deactivation made it a compelling all-around choice. You got real power without giving up fuel efficiency.

6.2L EcoTec3 V8 and 6.6L Duramax Diesel

The 6.2L EcoTec3 V8 (L86) delivered the top gas performance of this generation: 420 hp and 460 lb-ft of torque from its 2014 launch, paired with a 6-speed automatic at first and an 8-speed automatic added later in the production run, with up to 12,000 lb of towing. It gave the Silverado a noticeably athletic character to go along with its hauling credentials.

On the diesel side, the 6.6L Duramax LML (397 hp / 765 lb-ft) continued through 2016, then gave way to the L5P in 2017. That was a substantial step up, with the L5P rated at 445 hp and 910 lb-ft of torque, paired with an Allison 1000 six-speed automatic at launch and upgraded to the Allison 10L1000 ten-speed automatic for 2020. Towing capacity reached up to 18,500 lb with a 2500HD or 36,000 lb with a 3500HD dually.

Fourth-Generation Silverado Engines: 2019–Present

The T1XX platform brought the most diverse engine lineup in Silverado history. Turbocharged, diesel, and updated V8 options now cover a wider range of buyers than any previous generation.

2.7L Turbocharged Four-Cylinder and 3.0L Duramax Inline-Six

The 2.7L turbocharged I-4 (L3B), now branded TurboMax, was the first GM four-cylinder to feature AFM. It launched for 2019 with 310 hp and 348 lb-ft of torque, and a 2022 model year upgrade pushed torque to 430 lb-ft while horsepower stayed at 310. Paired with an 8-speed automatic, it tows up to 9,500 lb in current trucks. For urban drivers or anyone who doesn’t regularly haul heavy loads, it delivers confident performance without the fuel penalty of a larger engine.

The 3.0L Duramax inline-six debuted for the 2020 model year as the LM2, producing 277 hp and 460 lb-ft of torque with towing capacity up to 9,500 lb. For 2023, GM replaced the LM2 with the upgraded LZ0, which raises output to 305 hp and 495 lb-ft of torque and supports towing capacity up to 13,300 lb. The current LZ0 runs smoothly and quietly for a diesel, and it’s broadened the Silverado’s appeal to buyers who want long-distance efficiency alongside real towing capability.

If you’re weighing these options against current trims and packages, our current Silverado inventory shows exactly what’s in stock.

5.3L and 6.2L EcoTec3 V8 Updates

The 5.3L EcoTec3 V8 (L84) carries forward at 355 hp and 383 lb-ft of torque, with refined Direct Injection and Stop/Start technology improving real-world efficiency. The 6.2L EcoTec3 V8 (L87) holds its spot as the top gas option at 420 hp and 460 lb-ft of torque, now standard with a 10-speed automatic in high trims and supporting up to 13,300 lb of towing.

The 6.6L Duramax L5P received an update for 2024, climbing to 470 hp and 975 lb-ft of torque, up from 445 hp and 910 lb-ft in the 2017–2023 models. That torque figure puts it among the most capable diesel configurations available in a pickup truck today.

Chevy Colorado Engines Since 2012

The Colorado relaunched for the 2015 model year with an engine strategy tailored to midsize truck buyers, rather than simply scaling down Silverado power.

The 2.5L I-4 (LCV) served as the base engine from 2015 through 2022, producing 200 hp and 191 lb-ft of torque paired with a 6-speed automatic. The 3.6L V6 (LGZ) stepped up to 308 hp and 275 lb-ft of torque with up to 7,000 lb of towing capacity, making it a solid choice for buyers who needed light-to-moderate hauling without jumping to a full-size truck.

For 2023, Chevrolet brought the 2.7L TurboMax I-4 (L3B) to the Colorado, producing 310 hp and 430 lb-ft of torque. That torque figure is notably higher than the outgoing V6 despite the smaller displacement, which says a lot about how turbocharging has reshaped expectations for midsize engines. The TurboMax is now the standard engine for 2025 and 2026 Colorado models, with the 3.6L V6 no longer offered.

The Benefits of Chevy Truck Engines for Everyday Drivers

Not every truck buyer needs maximum towing capacity. Plenty of people choose a Chevy truck because it fits naturally into daily life while still offering the flexibility to handle bigger jobs when needed. The breadth of engine options makes that balance achievable across both the Silverado and Colorado.

Fuel economy has improved steadily across generations, driven by AFM cylinder deactivation, Direct Injection, and better transmission calibration. The core durability that has defined Chevy engines for decades remains intact, which translates into longer service lives and lower total ownership costs over time.

Find Your Next Chevy Truck Near Lexington at Jack Burford Chevrolet

Matching the Right Engine to Your Needs

The right Chevy truck engine really depends on how you actually use your truck. The 3.0L Duramax LZ0 and 6.6L Duramax L5P are the clear picks for heavy towing, with the L5P now producing 470 hp and 975 lb-ft of torque after its 2024 update. The 2.7L TurboMax four-cylinder and updated 5.3L EcoTec3 V8 serve everyday drivers well. If maximum gas performance is what you’re after, the 6.2L EcoTec3 V8 is the answer.

Visit Jack Burford Chevrolet

We serve customers near Lexington, Richmond, and throughout Madison County from our location at 819 Eastern Bypass in Richmond, KY. Our sales team knows the Silverado and Colorado lineups well and can walk you through every engine option against your actual needs.

When you’re ready to move forward, reach our sales team at (859) 353-0861 or apply for financing online before you visit. Our service department is open Monday through Friday from 7:30 AM to 5:30 PM for maintenance and repairs, backed by a fully stocked parts department.

Image courtesy of Chevrolet