The first fruit of GM and Isuzu's partnership ... So, LBZ-equipped GM trucks are something of a hot commodity amongst diesel and Duramax fans. This doesn't mean that the LB7 is perfect, of course.
The 6.7-liter was the first diesel engine to power trucks that used the Ram name without the Dodge moniker in front. Like the earlier, smaller engine, the 6.7-liter Cummins diesel went through ...
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