2010 GM 3.9L V-6 VVT ( LGD ) 06/05/2009
Description: 3.9L V-6 ( LGD )
Type: V-6
Displacement: 3880cc (238 ci)
Engine Orientation: L=Longitudinal T=Transverse T
Compression ratio: 9.8:1
Valve configuration: Overhead valves
Valves per cylinder: 2
Assembly site:
Ramos Arizpe, Mexico
Tonawanda, N.Y.
Valve lifters: Hydraulic roller
Firing order: 1 - 2 - 3 - 4 - 5 - 6
Bore x stroke: 99 x 84 mm ( 3.90 x 3.31 in. )
Fuel system: Sequential fuel injection
Fuel Type: Regular Unleaded and E85 Flex Fuel capable
Maximum Engine Speed: 6400 RPM
Emissions Summary:
Catalytic converter
Evaporative system
Positive crankcase ventilation
Applications: Horsepower: hp ( kw )
Buick Lucerne 227 hp ( 169 kW ) @ 5700 rpm SAE CERTIFIED
Chevrolet Impala 230 hp ( 172 kW ) @ 5700 rpm SAE CERTIFIED
Applications: Torque: lb-ft ( Nm )
Buick Lucerne 237 lb-ft. ( 321 Nm ) @ 3200 rpm SAE CERTIFIED
Chevrolet Impala 235 lb-ft. ( 319 Nm ) @ 3200 rpm SAE CERTIFIED
MATERIALS
Block: Cast iron
Cylinder head: Aluminum
Intake manifold: Cast aluminum
Exhaust manifold: High Silicon Molybdenum
Main bearing caps: Powder metal ( 1,2,3 ) cast iron ( 4 )
Crankshaft: Steel
Camshaft: Assembled steel
Connecting rods: Forged powder metal
Additional features:
E85 flex fuel capable
58x crankshaft
Variable valve timing (VVT)
Electronic throttle control
U-flow cooling
