2027 vs 2026 Chevrolet Silverado HD: Power and Towing Compared

The 2027 Chevrolet Silverado HD brings major mechanical upgrades compared with the 2026 model. Its new available 8.3L Duramax Turbo Diesel V8 produces 555 horsepower and 1,230 lb ft of torque, while maximum available towing rises to 38,000 pounds. The 2026 Silverado HD remains highly capable with its 6.6L Duramax producing 470 horsepower and 975 lb ft of torque and up to 36,000 pounds of towing capability. For heavy duty truck buyers in Somerset and near Pittsburgh, Greensburg and New Alexandria.