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Story summary
- General Motors announced the 8.3-liter Duramax V8 turbo-diesel named “Mongoose.”
- The Mongoose will debut in 2027 Chevrolet Silverado HD and GMC Sierra HD pickups.
- It replaces GM’s 6.6-liter Duramax V8 that makes 470 hp and 975 lb-ft torque.
- GM aims to out-perform Ford’s 500 hp, 1,200 lb-ft “Scorpion” Power Stroke diesel.
- Ram’s 6.7-liter Cummins diesel produces 430 hp and 1,075 lb-ft torque.
