The L8B is a powertrain system produced by General Motors for use in pickup trucks and SUVs. The system is based around the 5.3L L83 engine and two components: The 5.3L L83 V-8 engine is mated to a ...
General Motors introduced the 5.3-liter Vortec V8 back in 1999 and kept it in production for 15 years. Over that time, it became one of the most popular small-block engines in GM's lineup, offering ...
While the 5.3L LS4 V8 was the first car engine to feature Active Fuel Management (cylinder deactivation) technology, it was not Flex Fuel capable and did not have variable valve timing. As mentioned, ...