If you want to figure out which of these Duramax variants is under the hood of your early-2000s GM truck, the easiest way to do so is by verifying the vehicle's model year, with the LB7 utilized ...

The Duramax LB7 is a 6.6L V-8 with four valves per cylinder, a cast-iron engine block with aluminum heads, and high-pressure common-rail injection. It produced 300 hp at 3,100 rpm and 520 lb-ft at ...

Released at the tail-end of 2000 for the 2001 model year, the LB7 Duramax was the first commercially-available, pickup-truck-destined diesel engine to feature high-pressure common-rail fuel injection.