GM had already announced the arrival of new engines for its full-size pickup trucks, but until now, no power figures had been released. On September 16, 2026, as the automaker marked its 118th anniversary, GM took the opportunity to reveal the numbers. All four engines will be offered in the 2027 Chevrolet Silverado 1500 and GMC Sierra 1500, each paired with a 10-speed automatic transmission.


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