What Is a LB7 Duramax? Specs, Power, and Key Features
The LB7 Duramax is a 6.6L turbocharged V8 diesel engine introduced by GM in 2001 for heavy-duty trucks. It delivers 300 horsepower and 520 lb-ft of torque, featuring high-pressure common-rail fuel injection and an aluminum cylinder head. The lp7 duramax stands out for its strong low-end power, reliability in stock form, and popularity among diesel enthusiasts for performance upgrades.