GMs New Mongoose 8.3-Liter Duramax Diesel Makes 555 HP, 1,230 LB-FT
The all-new V-8 powers the 2027 Chevy Silverado HD and GMC Sierra HD, with maximum towing capacity climbing to 38,000 pounds.
https://www.motor1.com/news/809471/gms-new-mongoose-duramax-diesel/
