2027 GMC Sierra 3500HD

How GM’s New 8.3L Duramax Stacks Up Against Ford and Ram

Benny KirkSeptember 24, 2026

2027 GMC Sierra HD: New Duramax, More Gas V8 Power and Standard Adaptive Cruise

Pickup Truck + SUV Talk StaffSeptember 24, 2026

2027 GM 8.3L Duramax: 555 hp, 1,230 lb-ft and a whole new diesel

Tim EsterdahlSeptember 24, 2026

2027 GM HD 6.6L gas V8: More power, better cooling and no dipstick

Tim EsterdahlSeptember 24, 2026

GM teases 8.3L Duramax diesel with Mongoose video

Tim EsterdahlSeptember 21, 2026