at and . This engine is used in the following vehicles: 2007–2008 Chevrolet Impala LGD The LGD 3900 is a flexible fuel version of the 3.9L, and like its 3.5 L LZE counterpart, it can run on E85, pure gasoline, or any mixture of the two. This is the last ever version of the 3900 V6. The LGD is not available with Active Fuel Management. Output is slightly reduced at 230 horsepower at 5,700 rpm and 235 ft/lbs of torque at 3,200 rpm. 2007–2009 Buick Terraza/Chevrolet Uplander/Pontiac Montana SV6 2009–2011 Buick Lucerne/Chevrolet Impala 2007 Saturn Relay (fleet only) LZG The LZG 3900 is a flexible fuel version of the LZ8 that replaces the LZ8 in the Chevrolet Impala. It keeps the Active Fuel Management system introduced on that engine and produces a nearly identical and . 2008 Chevrolet Impala See also GM 60-Degree V6 engine Technological ancestor of the GM High Value V6. List of GM engines GM High Feature engine References External links GM Powertrain website High Value V6 engines Gasoline engines by model