2027 Chevrolet Silverado HD: New Engines, Specs & What's Changed

The 2027 Chevrolet Silverado HD arrives with an all-new 8.3L Duramax Turbo-Diesel V8 producing 555 hp and 1,230 lb-ft of torque. That torque figure is best-in-class and pairs with a class-first electric power steering system and new eBoost braking. This page covers every major change, all six trims, and powertrain details, with inventory online for Glendale shoppers.

What's New for 2027

The 2027 Silverado HD is a ground-up capability upgrade, not a refresh. The headline addition is the all-new available Duramax 8.3L Turbo-Diesel V8, the largest diesel engine ever offered in a Silverado HD. It generates 555 hp and 1,230 lb-ft of torque, both best-in-class figures, and pulls a maximum of 38,000 lbs when properly equipped.

Beyond raw power, two systems redefine how this truck drives under load. First-in-class electric power steering replaces hydraulic steering across the lineup, delivering quieter operation, reduced kickback on rough terrain, and tighter maneuverability at worksites and on switchbacks. The new eBoost electronic brake boost system replaces the traditional vacuum brake booster with an electronic unit that provides smoother, faster brake response and improved cooling during repeated stops while towing.

The ZR2 gains a first-in-segment Terrain Mode, unlocked by the combination of electric power steering and eBoost braking. Trail Boss availability now extends to the Custom trim for the first time. The 13.4-inch touchscreen and 12.3-inch Driver Information Center are new to the interior, and Google Gemini AI assistant integration is available.

2027 Silverado HD safety features

Trim Lineup

The 2027 Silverado HD offers six trims built around different buyer priorities.

WT

is the worksite baseline, focused on function and straightforward durability for commercial buyers who need capability without extras.

Custom

steps up with value-oriented styling and utility. For 2027, it adds the Trail Boss package option for the first time, giving entry-level buyers access to off-road hardware that was previously limited to higher trims.

LT

brings versatility features into the mix, building on the Custom's foundation with added convenience technology and comfort upgrades suitable for buyers who split time between jobsite and highway.

LTZ

packages premium materials and a complete technology suite with the truck's full powertrain capability. It suits buyers who want a well-equipped daily driver that also handles serious towing.

ZR2

is the dedicated off-road performer. It comes with a factory-installed 1.5-inch lift, new larger Multimatic DSSV dampers, 35-inch MT tires, a rear e-locker, aluminum skid plates, and the new ZR2 Terrain Mode. It represents the most capable off-road HD Chevrolet has built.

High Country

sits at the top of the lineup with luxury-level interior appointments, two-tone leather seating, available wood-grain trim, and the full technology stack. It is the choice for buyers who want best-in-class capability wrapped in a near-luxury cabin.

Compare 2027 Silverado HD trims

The 2027 Silverado HD hauling a trailer with a 4x4 razer

Performance & Powertrain

Two engines are available for 2027, each built and tuned for specific workloads.

The available all-new Duramax 8.3L Turbo-Diesel V8 is assembled in Brookville, OH. It produces 555 hp and 1,230 lb-ft of torque, enabling a maximum tow rating of 38,000 lbs. Max payload with this engine reaches 6,170 lbs. The diesel pairs with an Allison 10-speed automatic transmission that incorporates diesel exhaust braking and grade-braking strategies to reduce brake stress on long downhill runs.

The enhanced 6.6L gas V8 is assembled in Tonawanda, NY. It produces 412 hp and 472 lb-ft of torque, with a maximum tow rating of 19,000 lbs and a maximum payload of 6,990 lbs. This engine now includes an oil level sensor with a Driver Information Center readout, a feature that eliminates manual dipstick checks and keeps the driver informed without stopping. Both engines benefit from the Tow/Haul Mode, which increases steering damping for better trailer control, and the new eBoost braking system.

Allison Transmission grade-braking technology

Interior, Comfort & Cargo

The 2027 Silverado HD interior is a significant step forward from the outgoing truck. The centerpiece is a 13.4-inch touchscreen that handles infotainment, trailering camera management, and available navigation. A 12.3-inch Driver Information Center sits directly in the driver's sightline and displays the oil level sensor readout on gas V8 models.

The rear passenger area is genuinely spacious, with ample legroom in crew cab configurations suited for work crews. Higher trims receive leather-appointed seating with contrasting stitching and perforated surfaces. The High Country brings premium two-tone leather and available wood-grain accents.

The Durabed cargo area is built for durability with a high-strength steel bed. The available Multi-Flex Tailgate gives owners multiple positions for loading, sitting, and step-up access, adding practical utility for buyers who regularly work out of the bed.

Technology and infotainment system in the 2027 Silverado HD

Technology & Infotainment

The 2027 Silverado HD's technology suite is the most connected the nameplate has offered. The 13.4-inch touchscreen supports Google built-in and available Google Gemini AI assistant, which functions as a voice-activated assistant for navigation, calls, and vehicle queries without taking hands off the wheel.

Adaptive Cruise Control is now standard across the lineup. Up to 14 available camera views cover hitching, reversing, lane changes, and live trailer monitoring, all manageable from the touchscreen. An available in-vehicle trailering app helps manage trailer profiles, tongue weight guidance, and trailer brake controller settings from inside the cab.

OnStar Basics is standard for eight years and includes remote commands, Automatic Crash Response, built-in voice assistance, real-time navigation, and access to audio streaming apps.

The ZR2 adds the new Terrain Mode selector, which adjusts electric power steering feel and eBoost brake response for dirt, sand, and rock surfaces.

2027 Silverado HD technology features

Safety & Driver Assistance

The 2027 Silverado HD carries a comprehensive standard safety suite. Every trim includes Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking, Lane Keep Assist with Lane Departure Warning, Following Distance Indicator, IntelliBeam high beam assist, and Adaptive Cruise Control.

For trailering-specific safety, available Trailer Side Blind Zone Alert extends the truck's blind spot monitoring to cover the trailer's length, a meaningful upgrade for drivers managing large fifth-wheel or gooseneck trailers. The eBoost electronic brake boost system contributes directly to active safety by providing more consistent and predictable brake feel under load, reducing fade risk during repeated downhill stops.

The diesel exhaust braking system on the Duramax 8.3L, combined with the Allison 10-speed's grade-braking logic, works as a supplemental deceleration system that reduces reliance on the foundation brakes on steep grades.

NHTSA truck safety ratings

Safety and Driver ssistance features in the 2027 Silverado HD

Who It's For / vs the Prior Year

The 2026 Silverado HD was already a segment leader in towing and payload. The 2027 model makes a focused argument to buyers who found the prior generation adequate but wanted more confidence at the wheel, not just more numbers on a spec sheet.

The jump from hydraulic to electric power steering is the most tactile change. Drivers who have wrestled a loaded trailer through a tight construction gate or navigated a switchback on a mountain haul road will feel the difference immediately. The eBoost braking adds a similar layer of control confidence that the raw tow rating alone cannot convey.

For buyers near Glendale who are upgrading from a 2024 or 2025 HD, the 2027 brings two new engines, two new chassis control systems, and a substantially improved interior screen package. Buyers already running a 2026 will find the 8.3L diesel and Terrain Mode to be the most compelling reasons to step up.

The 2027 Silverado HD is expected to be available late 2026. Preproduction models are shown in current imagery, and final production specifications may vary.

See the 2027 Silverado HD at Umansky Chevrolet in Glendale

Umansky Chevrolet serves buyers across the Glendale area who need a truck built for real HD work. The 2027 Silverado HD's 38,000-lb tow rating, 555 hp Duramax diesel, electric power steering, and eBoost braking represent a generational step forward from the previous model. Browse current inventory, get a trade valuation, or schedule time to talk with a product specialist about which engine and trim match your specific haul requirements.

Shop 2027 Silverado HD Inventory

Value Your Trade

Schedule a Test Drive

Frequently Asked Questions

What is the towing capacity of the 2027 Chevrolet Silverado HD?

The 2027 Silverado HD tows up to 38,000 lbs when equipped with the available Duramax 8.3L Turbo-Diesel V8 and properly configured. The enhanced 6.6L gas V8 is rated for up to 19,000 lbs max towing.

What is the horsepower and torque of the 2027 Silverado HD diesel engine?

What is new on the 2027 Silverado HD compared to the 2026?

How many trims does the 2027 Silverado HD come in?

What is the payload capacity of the 2027 Silverado HD?

Does the 2027 Silverado HD have electric power steering?

When will the 2027 Chevrolet Silverado HD be available?

What transmission does the 2027 Silverado HD use?

2027 Chevrolet Silverado HD

This vehicle has a pending sale.

{{condition}} {{yr}} {{make}} {{model}} {{body}}

EXTERIOR

INTERIOR

Mileage: {{#helpers.formatNumber}}{{mileage}}{{/helpers.formatNumber}}

Body Style: {{body}}

Engine: {{engine}}

Transmission: {{transmission}}

Drivetrain: {{drivetrain}}

View Details & Pricing

Disclaimers

Price includes all dealer fees. Tax, title, license, registration, and optional equipment are additional. Dealer sets final price. Dealer discount applied to everyone. ¹Dealer Discount applied to everyone.

Umansky Chevrolet

2027 Chevrolet Silverado HD: New Engines, Specs & What's Changed

What's New for 2027

Trim Lineup