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The short lived performance car that deserved better

The muscle car is American, the exotic sports car Italian, and the performance saloon German ...
GM Authority

GM 5.3 Liter V8 Small Block LS4 Engine

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, ...