2027 GMC Sierra 1500 vs 2027 Ram 1500: Why Choose GMC’s New V8 Truck?

Saskatchewan truck shoppers cross-shopping the 2027 GMC Sierra 1500 and Ram 1500 usually land on one question: how much V8 do you get, and what can it pull? The Sierra answers with two all-new naturally aspirated V8s and a trailering toolkit built around the way people tow.

This comparison keeps every towing and payload figure tied to its engine, cab, drivetrain and package, because those numbers only mean something when they are matched.

Sierra 1500 vs Ram 1500 at a Glance

Spec	Sierra 1500	Ram 1500
Top naturally aspirated V8 output	6.6 L V8, 481 hp	6.4 L HEMI V8, 470 hp
5.7 L V8 output	402 hp, 428 lb-ft	395 hp, 410 lb-ft
Highest towing rating	13,500 lbs (6,123 kg), 5.7 L V8	11,530 lbs (5,230 kg), 3.0 L Hurricane SO twin-turbo
Top towing, closest-output V8	9,400 lbs (4,264 kg), 6.6 L V8	7,460 lbs (3,383 kg), 6.4 L HEMI V8
Maximum payload, 5.7 L V8	2,140 lbs (971 kg)	1,150 lbs (521 kg)
Centre touchscreen	16.3 in	14.5 in
Passenger screen	11.5 in	10.25 in

Towing and payload are maximum ratings. They shift with cab, drivetrain, equipment and the weight of passengers and cargo.

Two New Naturally Aspirated V8s

The 2027 Sierra 1500 offers a choice of two sixth-generation Small Block V8s. The 5.7 L makes 402 hp and 428 lb-ft. The 6.6 L makes 481 hp and 501 lb-ft, the most powerful naturally aspirated V8 in its class and the largest by displacement.

Both use higher compression, larger throttle bodies and tuned intake manifolds. A dual-fuel system adds port injection to direct injection. Both pair with a 10-speed automatic.

Ram has a broader engine menu, with eight powertrain configurations and a 777 hp supercharged HEMI V8 in the Rumble Bee SRT. But that engine is a specialty muscle-truck build rated for 8,580 lbs (3,892 kg) of towing and 1,140 lbs (517 kg) of payload. The Sierra’s V8s are everyday half-ton engines without forced induction, and the 5.7 L out-powers Ram’s 395 hp 5.7 L HEMI at the same displacement.

Trim placement matters here. The 5.7 L is standard on AT4 and Denali, and optional on Pro and Elevation. The 6.6 L is standard on the top Denali trim and optional on AT4X and Denali. The Duramax 3.0 L Turbo-Diesel (305 hp, 495 lb-ft) is standard on AT4X.

Towing and Payload: Match the Configuration

The Sierra’s headline tow rating is 13,500 lbs (6,123 kg). It comes from the 5.7 L V8 in a Double Cab 4WD with the Max Trailering Package. The Crew Cab 4WD with the same package is rated at 13,300 lbs (6,033 kg).

Ram’s twin-turbo inline-six and 5.7 L eTorque V8 reach up to 11,530 lbs (5,230 kg) and 11,370 lbs (5,157 kg). But the Sierra’s naturally aspirated 5.7 L V8 tops every Ram 1500 rating. The Duramax diesel also edges ahead at 12,100 lbs (5,488 kg) in Crew Cab 4WD with the same package.

Payload needs the same discipline. Ram’s highest figure is 2,340 lbs (1,061 kg), and it belongs to the V6 eTorque, which tows up to 8,100 lbs (3,674 kg). The Sierra’s 2.7 L TurboMax in Regular Cab 2WD pairs 2,310 lbs (1,048 kg) of payload with 9,400 lbs (4,264 kg) of towing.

The 5.7 L V8 in Regular Cab 2WD carries 2,140 lbs (971 kg) and tows 9,700 lbs (4,400 kg). Those two numbers belong to the same truck, which is the honest way to read them. The 13,500 lbs (6,124 kg) figure is a different truck.

The 6.6 L is the power pick rather than the payload pick. In Crew Cab form it is rated at 1,450 lbs (658 kg) of payload and 9,400 lbs (4,264 kg) of towing, still ahead of the 6.4 L HEMI V8’s up to 7,460 lbs (3,384 kg) and 1,160 lbs (526 kg).

Trailering Tech and Super Cruise

Ram equips its trucks with a digital rearview mirror with tow mode, trailer reverse steering control and trailer tow detection in its blind-spot monitoring. The Sierra goes further into the trailer itself.

• Hitch View and a transparent trailer view, part of an available camera suite of up to 19 views
• Mobile trailer-light checks
• A Tow/Haul driver display and an in-vehicle Trailering App
• Industry-first available Trailer Brake Gain Assistant

Super Cruise hands-free driver assistance, with trailering capability, is standard on AT4, AT4X, Denali and the top Denali trim. It is available on Elevation through the Super Cruise Package. Each of those trims includes three years of the OnStar One plan, and a paid subscription is needed after the trial.

Super Cruise works on compatible roads, and the driver stays responsible for paying attention. Automatic Lane Change and Turn Signal Activated Lane Change do not operate while trailering. Ram offers Hands-free Driving Assist as an available feature, but the Sierra puts Super Cruise in the standard column on four trims.

A Cabin Built Around Bigger Screens

The Sierra’s 16.3-inch centre screen is larger than Ram’s available 14.5-inch Uconnect 5. On Elevation, it articulates to reveal hidden storage behind the display.

The optional 11.5-inch passenger screen, standard on AT4X and the top Denali trim, outsizes Ram’s 10.25-inch passenger display. Its articulating cover and polarized technology keep content visible to the passenger only.

Ram advertises over 50 inches of combined screen coverage, a total that spans its touchscreen, passenger screen, instrument cluster, digital mirror and head-up display. The top Denali trim counts more than 60 inches across a 16.3-inch screen, 11.5-inch passenger screen, 12.2-inch Driver Information Centre, 15-inch head-up display and 8.5-inch Rear Camera Mirror.

The new native interface also brings Google built-in with Google Gemini, Google Maps and over-the-air updates, plus Apple CarPlay and Android Auto, supported by up to 8 years of included OnStar plans. Six USB ports and dual MagSafe wireless charging round out the connectivity.

Ride, Bed and Off-Road Hardware

Ram’s five-link coil rear suspension targets ride quality. The Sierra answers with trim-specific hardware: Adaptive Ride Control on both Denali trims, and Multimatic DSSV shocks on AT4X. AT4 and AT4X add a 2-inch factory-installed lift, with 34-inch all-terrain tires on AT4 and 35-inch Goodyear Wrangler Territory MT tires on AT4X. AT4X also brings front and rear electronic locking differentials and a Baja drive mode.

Ram’s RamBox storage is a genuine bed feature. The Sierra counters with the MultiPro Tailgate and 16 bed tie-downs on Elevation, plus a MultiPro centre console with a workstation inside the cab. Underbody cameras with a wash system, standard on AT4X and the top Denali trim, show what is under the front and rear of the truck on rough ground.

Why the Sierra 1500 Fits Saskatchewan Drivers

The Sierra lines up by priority, and every path ends in the same showroom.

• Traditional V8 sound and response: the 6.6 L at 481 hp in the top Denali trim, or the 5.7 L at 402 hp in AT4 and Denali.
• Maximum trailering: the 5.7 L V8 with the Max Trailering Package, optional on Elevation, for up to 13,500 lbs (6,123 kg).
• Payload-focused work: Pro or Elevation with the 2.7 L TurboMax at 350 hp and 455 lb-ft, rated at up to 2,310 lbs (1,048 kg).
• Off-road driving: AT4 for the 5.7 L V8 and lift, AT4X for the diesel, lockers and 35-inch tires.
• Premium technology and long-haul comfort: Denali, with 12-way heated and ventilated seats, Adaptive Ride Control and Super Cruise as standard equipment.

The first 2027 Sierra 1500 models are expected at GMC dealerships before the end of 2026.

The 2027 Sierra 1500 for V8 Buyers Who Tow

The 2027 Sierra 1500 pairs two naturally aspirated V8s with a 13,500 lbs (6,123 kg) maximum tow rating and standard Super Cruise on four trims. It also brings a trailering interface and the largest touchscreen in this comparison. For V8 buyers who tow and want premium technology, it is the clear pick.

Visit Mann-Northway Chevrolet Buick GMC in Prince Albert to explore the 2027 Sierra 1500 and work out which V8 and trim fit your trailer and your work. Ask about ordering and financing while you are there.