The new 8.3-liter Duramax produces 555 hp and 1,230 lb-ft of torque. GM also replaces hydraulic steering and brake assist with electric systems. Maximum gooseneck towing rises to 38,000 pounds, still shy of Ford’s 40,000. Heavy-duty pickups have spent years fighting over ever-increasing numbers, and GM just landed a substantial blow. Its 2027 Chevrolet Silverado HD and GMC Sierra HD will offer an all-new 8.3-liter Duramax turbodiesel V8 with 555 hp (414 kW) and 1,230 lb-ft (1,668 Nm) of torque. That beats Ford’s high-output Power Stroke on both figures. Yet the biggest surprise here may be how much GM changed around the engine. var adpushup = window.adpushup = window.adpushup ||…
GM’s New 8.3L Duramax V8 Has Enough Torque To Pull A Planet And Ford Out Of The Top Spot
