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, ...

The 6.2 liter V8 LT1 engine was produced by General Motors for use in performance vehicles and sports cars. It was part of GM’s Gen V Small Block engine family and was first introduced in the C7 ...