The Duramax diesel engine made its way to the half ... The LBZ is an improvement over the LB7, giving drivers more power and strength to handle heavier loads in the bed. Like its predecessor ...

7. Duramax 6.6L LB7 The Duramax 6.6L LB7, introduced in 2001 as a joint venture between General Motors and Isuzu, revolutionized the light-duty diesel truck market by combining exceptional durability ...

From the onset of our test, we raved about the quietness of the Silverado ZR2 and its refined Duramax diesel engine. As the months rolled on, though, we noticed an increase in tire noise.