GM High Value engine
Encyclopedia
The High Value engine family from General Motors is a group of Cam in Block or "Overhead valve
" V6 engines. They use the same 60° vee bank as the 60° V6 family
they are based on, but the new 99 mm (3.9 in) bore required offsetting the bores by 1.5 mm (0.0590551181102362 in) away from the engine centerline. These engines (aside from the LX9) are the first cam in block engines to implement Variable Valve Timing, and won the 2006 Breakthrough Award from Popular Mechanics
for this innovation. For the model year 2007 the 3900 engine features optional displacement on demand, or what is now called "Active Fuel Management" which can deactivate one bank of cylinders under light load to increase economy. It was rumored GM would produce a 3-valve design, but that never came to be. These engines are produced primarily at the GM UAW factory in Tonawanda, New York
. As of the 2012 model year GM no longer sell these motors in any US market vehicles.
V6. It incorporates electronic throttle control
. Bore is 94 mm (3.7 in), stroke is 84 mm (3.3 in) for a displacement of 3498 cc (213 cu in). A GM Press Release for the 2004 Malibu described the 3500 thus: "3.5-liter V-6, will debut in the 2004 Chevrolet Malibu. The engine offers improved performance and fuel efficiency, and runs smoother and quieter than earlier generation V-6 engines. The 3500 V-6 features an advanced powertrain control module, improved fuel injection system, a redesigned exhaust manifold and a new catalytic converter contribute to reduced emissions, as well as improved efficiency and performance characteristics. Improvements in cooling, sealing and the accessory drive system add to the engine's overall quality, reliability and durability." Power output ranges from 196 hp to 201 hp, torque ranges from 213 lbft to 221 lbft.
It was used in the following vehicles and model years:
Applications:
Note: GM often refers to this engine in its literature as a "3.5L V6 with Variable Valve Timing".
) and includes continuously variable cam timing
(fixed overlap). It has a cast iron block and aluminum heads. Bore is 99 mm (3.9 in), stroke is 76 mm (3 in) for a displacement of 3510 cc (214 cu in). Output is 211 hp (156.5 kW) at 5800 rpm and 216 lbft at 4000 rpm.
Output for model year 2007 is upped to 224 hp at 5800 rpm and torque of 220 lbft at 4000 rpm.
Applications:
These engines should not be confused with the LX5 "Shortstar
" DOHC V6 used in the Oldsmobile Intrigue
from 1999-2002, which also displaced 3.5 L.
, a new feature on a pushrod engine, roller rocker arms and has a variable length intake manifold
. The dual intake runners (One short, one longer) improves intake efficiency across a broader RPM range.
It produces 240 hp (179 kW) and 240 ft·lbf (332 Nm) torque, with a wide torque curve. 90% of the torque is available from 1500 rpm to 5500 rpm.
Applications:
technology as the LZ9. The 2007 model year introduces the Active Fuel Management
system (formerly known as Displacement on Demand), which can turn off a bank of cylinders under a light load for increased fuel economy. Output is slightly lower than the LZ9 at 233 hp (174 kW) and 240 ft·lbf (332 N·m).
This engine is used in the following vehicles:
, pure gasoline or any mixture of the two. Output is identical to the LZ9.
system introduced on that engine and produces a nearly identical 233 hp (174 kW) and 240 ft·lbf (325 N·m).
Overhead valve
An overhead valve engine, also informally called pushrod engine or I-head engine, is a type of piston engine that places the camshaft within the cylinder block , and uses pushrods or rods to actuate rocker arms above the cylinder...
" V6 engines. They use the same 60° vee bank as the 60° V6 family
GM 60-Degree V6 engine
The General Motors 60° V6 family of engines began with the 1980 Chevrolet 2.8 L V6 and continues to be produced today . Its use in the X-body cars leads some to refer to it as the X engine.It is a 60° vee block with pushrod heads, except for a single DOHC member, the LQ1...
they are based on, but the new 99 mm (3.9 in) bore required offsetting the bores by 1.5 mm (0.0590551181102362 in) away from the engine centerline. These engines (aside from the LX9) are the first cam in block engines to implement Variable Valve Timing, and won the 2006 Breakthrough Award from Popular Mechanics
Popular Mechanics
Popular Mechanics is an American magazine first published January 11, 1902 by H. H. Windsor, and has been owned since 1958 by the Hearst Corporation...
for this innovation. For the model year 2007 the 3900 engine features optional displacement on demand, or what is now called "Active Fuel Management" which can deactivate one bank of cylinders under light load to increase economy. It was rumored GM would produce a 3-valve design, but that never came to be. These engines are produced primarily at the GM UAW factory in Tonawanda, New York
Tonawanda (town), New York
Tonawanda is a town in Erie County, New York, United States. As of the 2000 census, the town had a population of 78,155. The town is at the north border of the county and is the northern suburb of Buffalo...
. As of the 2012 model year GM no longer sell these motors in any US market vehicles.
LX9
The LX9 3500 is an OHV engine based on the 3400GM 60-Degree V6 engine
The General Motors 60° V6 family of engines began with the 1980 Chevrolet 2.8 L V6 and continues to be produced today . Its use in the X-body cars leads some to refer to it as the X engine.It is a 60° vee block with pushrod heads, except for a single DOHC member, the LQ1...
V6. It incorporates electronic throttle control
Electronic throttle control
Electronic throttle control is an automobile technology which severs the mechanical link between the accelerator pedal and the throttle. Most automobiles already use a throttle position sensor to provide input to traction control, antilock brakes, fuel injection, and other systems, but use a...
. Bore is 94 mm (3.7 in), stroke is 84 mm (3.3 in) for a displacement of 3498 cc (213 cu in). A GM Press Release for the 2004 Malibu described the 3500 thus: "3.5-liter V-6, will debut in the 2004 Chevrolet Malibu. The engine offers improved performance and fuel efficiency, and runs smoother and quieter than earlier generation V-6 engines. The 3500 V-6 features an advanced powertrain control module, improved fuel injection system, a redesigned exhaust manifold and a new catalytic converter contribute to reduced emissions, as well as improved efficiency and performance characteristics. Improvements in cooling, sealing and the accessory drive system add to the engine's overall quality, reliability and durability." Power output ranges from 196 hp to 201 hp, torque ranges from 213 lbft to 221 lbft.
It was used in the following vehicles and model years:
- 2005–2006 Buick TerrazaBuick TerrazaThe Buick Terraza is a minivan from General Motors' Buick brand that was sold from the 2005 through 2007 model years. It filled the position of GM's luxury minivan that was previously occupied by the Oldsmobile Silhouette until the division's demise in 2004...
/Chevrolet UplanderChevrolet UplanderThe Chevrolet Uplander is a minivan produced by the Chevrolet division of General Motors. It replaced the Venture and Astro. Although introduced for the 2005 model year, it overlapped with the final model years of the Venture and Astro. It was built on the same platform as the Saturn Relay, Buick...
/Pontiac MontanaPontiac MontanaThe Pontiac Montana is a minivan from the Pontiac division of General Motors. Prior to the 1997 model year, it was known as Pontiac Trans Sport. In 1997, the Trans Sport added the Montana moniker as part of an available trim package. The package proved so popular the line was renamed Montana in...
/Saturn RelaySaturn RelayThe Saturn Relay was the first and only minivan from the Saturn brand of American automaker General Motors. It was introduced for the 2005 model year, and was built alongside its sisters, the Buick Terraza, the Chevrolet Uplander, and the Pontiac Montana SV6 in Doraville, Georgia... - 2004–2006 Chevrolet MalibuChevrolet MalibuMalibus and all other Chevelles were completely restyled for 1968 with semi-fastback rooflines on two-door hardtops and wheelbases split to on two-door models and 118 for four-door sedans and station wagons. Engine offerings included a new V8 rated at that replaced the V8 that had served as the...
/Chevrolet Malibu Maxx - 2005–2006 Pontiac G6 Sedan / CoupePontiac G6The Pontiac G6 was a mid-size car produced under the Pontiac brand of American automaker General Motors.It was introduced in the fall of 2004 to replace the Grand Am. The car was built on the GM Epsilon platform which it shared with the Chevrolet Malibu and Saab 9-3 along with other General Motors...
- 2006–2007 Buick RendezvousBuick RendezvousThe Buick Rendezvous, introduced in the spring of 2001 as a 2002 model year vehicle, was a Mid-size crossover SUV that was sold by the Buick division of General Motors for the 2002-2007 model years.-Background:...
- 2006 Pontiac G6 GT ConvertiblePontiac G6The Pontiac G6 was a mid-size car produced under the Pontiac brand of American automaker General Motors.It was introduced in the fall of 2004 to replace the Grand Am. The car was built on the GM Epsilon platform which it shared with the Chevrolet Malibu and Saab 9-3 along with other General Motors...
LZ4
The LZ4 3500 is an OHV engine based on the 3.9 L LZ9 V6. It was introduced for the 2006 model year in the Chevrolet Impala and Monte Carlo. It includes continuously variable cam timing (fixed overlap). It has a cast iron block and aluminum heads. Output is 211 hp (156.5 kW) at 5800 rpm and 214 ft·lbf (298 N·m) at 4000 rpm. Bore is 99 mm (3.9 in), stroke is 76 mm (3 in) for a displacement of 3510 cc. Horsepower rating changed for the 2007 model year to 224 hp at 5800 rpm and 220 ft-lb torque at 4000 rpm. The Chevrolet Malibu, Pontiac G6, and Saturn Aura became equipped with this engine for 2007 (previously the Malibu and G6 had the non-VVT 201 hp 3.5 L LX9). In 2008 SAE ratings dropped the horsepower ratings to 219, keeping torque as is. On Pontiac G6 convertible models, horsepower was rated at 217.Applications:
- 2006–2009 Chevrolet ImpalaChevrolet ImpalaThe Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year. Deriving its name from the southern African antelope, Chevrolet's most expensive passenger model through 1965 had become the best-selling automobile in the United...
- 2006–2007 Chevrolet Monte CarloChevrolet Monte CarloThe Chevrolet Monte Carlo was an American-made two-door coupe introduced for model year 1970, and manufactured over six generations through model year 2007. It was marketed as a personal-luxury coupe through most of its history, with the last model version being classified as a full-sized coupe...
- 2007–2010 Chevrolet MalibuChevrolet MalibuMalibus and all other Chevelles were completely restyled for 1968 with semi-fastback rooflines on two-door hardtops and wheelbases split to on two-door models and 118 for four-door sedans and station wagons. Engine offerings included a new V8 rated at that replaced the V8 that had served as the...
/Chevrolet Malibu Maxx - 2007–2009 Saturn AuraSaturn AuraThe Saturn Aura is a mid-size car produced under the Saturn brand of American automaker General Motors. It debuted as a concept car at the North American International Auto Show in January 2005. The production model of the Aura was shown at the 2006 New York Auto Show in April, with production...
- 2007–2009 Pontiac G6Pontiac G6The Pontiac G6 was a mid-size car produced under the Pontiac brand of American automaker General Motors.It was introduced in the fall of 2004 to replace the Grand Am. The car was built on the GM Epsilon platform which it shared with the Chevrolet Malibu and Saab 9-3 along with other General Motors...
- 2008–2009 Saturn VueSaturn VUEThe Saturn Vue is a compact crossover SUV that was sold by General Motors' Saturn marque, and at one time was Saturn's best-selling model. It was the first vehicle to use the GM Theta platform when it was introduced in 2002. A second generation model was launched in 2007 for the 2008 model as a...
XE AWD (222 hp/220 lb-ft)
Note: GM often refers to this engine in its literature as a "3.5L V6 with Variable Valve Timing".
LZE
The LZE 3500 was an OHV flexible fuel engine based on the 3.9 L LZ9 V6 (it can use either plain gasoline or 85% Ethanol, E85E85
E85 is an abbreviation for an ethanol fuel blend of up to 85% denatured ethanol fuel and gasoline or other hydrocarbon by volume. E85 is commonly used by flex-fuel vehicles in the US, Canada, and Europe. Some of the benefits of E85 over conventional gasoline powered vehicles include the potential...
) and includes continuously variable cam timing
Variable Cam Timing
Variable Camshaft Timing is an automobile variable valve timing technology developed by Ford. It uses electronically controlled hydraulic valves that direct high pressure engine oil into the camshaft phaser cavity. These oil control solenoids are bolted into the cylinder heads towards the front of...
(fixed overlap). It has a cast iron block and aluminum heads. Bore is 99 mm (3.9 in), stroke is 76 mm (3 in) for a displacement of 3510 cc (214 cu in). Output is 211 hp (156.5 kW) at 5800 rpm and 216 lbft at 4000 rpm.
Output for model year 2007 is upped to 224 hp at 5800 rpm and torque of 220 lbft at 4000 rpm.
Applications:
- 2006–2011 Chevrolet ImpalaChevrolet ImpalaThe Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year. Deriving its name from the southern African antelope, Chevrolet's most expensive passenger model through 1965 had become the best-selling automobile in the United...
- 2006–2007 Chevrolet Monte CarloChevrolet Monte CarloThe Chevrolet Monte Carlo was an American-made two-door coupe introduced for model year 1970, and manufactured over six generations through model year 2007. It was marketed as a personal-luxury coupe through most of its history, with the last model version being classified as a full-sized coupe...
These engines should not be confused with the LX5 "Shortstar
Northstar engine series
The Northstar engine series of automobile engines is General Motors' most technically complex 90° V engine architecture. The family is most associated with Cadillac's Northstar V8, but the family has also seen use at Oldsmobile...
" DOHC V6 used in the Oldsmobile Intrigue
Oldsmobile Intrigue
The Oldsmobile Intrigue was a mid-size sedan manufactured from 1998 through 2002 by the Oldsmobile division of General Motors. The Intrigue's design cues were first seen in 1995 with the Oldsmobile Antares concept car...
from 1999-2002, which also displaced 3.5 L.
3.9
Bore is increased to 99 mm (3.9 in) and stroke is increased to 84 mm (3.31 in) for a displacement of 3880 cc (237 cu in).LZ9
The new LZ9 3900 features Variable Cam TimingVariable Cam Timing
Variable Camshaft Timing is an automobile variable valve timing technology developed by Ford. It uses electronically controlled hydraulic valves that direct high pressure engine oil into the camshaft phaser cavity. These oil control solenoids are bolted into the cylinder heads towards the front of...
, a new feature on a pushrod engine, roller rocker arms and has a variable length intake manifold
Variable Length Intake Manifold
In internal combustion engines, a variable length intake manifold , or variable intake manifold is an automobile internal combustion engine manifold technology...
. The dual intake runners (One short, one longer) improves intake efficiency across a broader RPM range.
It produces 240 hp (179 kW) and 240 ft·lbf (332 Nm) torque, with a wide torque curve. 90% of the torque is available from 1500 rpm to 5500 rpm.
Applications:
- 2006 Pontiac G6 GTP Sedan / Coupe / ConvertiblePontiac G6The Pontiac G6 was a mid-size car produced under the Pontiac brand of American automaker General Motors.It was introduced in the fall of 2004 to replace the Grand Am. The car was built on the GM Epsilon platform which it shared with the Chevrolet Malibu and Saab 9-3 along with other General Motors...
- 2007 Pontiac G6 GT Sport Package Sedan / CoupePontiac G6The Pontiac G6 was a mid-size car produced under the Pontiac brand of American automaker General Motors.It was introduced in the fall of 2004 to replace the Grand Am. The car was built on the GM Epsilon platform which it shared with the Chevrolet Malibu and Saab 9-3 along with other General Motors...
- 2007–2009 Pontiac G6 GT Sport Package ConvertiblePontiac G6The Pontiac G6 was a mid-size car produced under the Pontiac brand of American automaker General Motors.It was introduced in the fall of 2004 to replace the Grand Am. The car was built on the GM Epsilon platform which it shared with the Chevrolet Malibu and Saab 9-3 along with other General Motors...
- 2006–2007 Chevrolet Malibu SSChevrolet MalibuMalibus and all other Chevelles were completely restyled for 1968 with semi-fastback rooflines on two-door hardtops and wheelbases split to on two-door models and 118 for four-door sedans and station wagons. Engine offerings included a new V8 rated at that replaced the V8 that had served as the...
- 2006-2011 Chevrolet ImpalaChevrolet ImpalaThe Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year. Deriving its name from the southern African antelope, Chevrolet's most expensive passenger model through 1965 had become the best-selling automobile in the United...
/Monte CarloChevrolet Monte CarloThe Chevrolet Monte Carlo was an American-made two-door coupe introduced for model year 1970, and manufactured over six generations through model year 2007. It was marketed as a personal-luxury coupe through most of its history, with the last model version being classified as a full-sized coupe... - 2006–2009 Buick TerrazaBuick TerrazaThe Buick Terraza is a minivan from General Motors' Buick brand that was sold from the 2005 through 2007 model years. It filled the position of GM's luxury minivan that was previously occupied by the Oldsmobile Silhouette until the division's demise in 2004...
/Chevrolet UplanderChevrolet UplanderThe Chevrolet Uplander is a minivan produced by the Chevrolet division of General Motors. It replaced the Venture and Astro. Although introduced for the 2005 model year, it overlapped with the final model years of the Venture and Astro. It was built on the same platform as the Saturn Relay, Buick...
/Pontiac MontanaPontiac MontanaThe Pontiac Montana is a minivan from the Pontiac division of General Motors. Prior to the 1997 model year, it was known as Pontiac Trans Sport. In 1997, the Trans Sport added the Montana moniker as part of an available trim package. The package proved so popular the line was renamed Montana in...
/Saturn RelaySaturn RelayThe Saturn Relay was the first and only minivan from the Saturn brand of American automaker General Motors. It was introduced for the 2005 model year, and was built alongside its sisters, the Buick Terraza, the Chevrolet Uplander, and the Pontiac Montana SV6 in Doraville, Georgia... - 2009–2011 Buick LucerneBuick LucerneThe Buick Lucerne is a full-size car sold by the Buick division of General Motors. Introduced at the 2005 Chicago Auto Show, the Lucerne replaced both the Park Avenue and the LeSabre for the 2006 model year, and was sold through the 2011 model year...
LZ8
The LZ8 3900 has the same Variable Cam TimingVCT
*'Vinyl composition tile is a finished flooring material used primarily in commercial and institutional applications.VCT is a three-letter abbreviation with multiple meanings, as described below:* Saint Vincent and the Grenadines — ISO country code....
technology as the LZ9. The 2007 model year introduces the Active Fuel Management
Active Fuel Management
Active Fuel Management is a trademarked name for the automobile variable displacement technology from General Motors. It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy...
system (formerly known as Displacement on Demand), which can turn off a bank of cylinders under a light load for increased fuel economy. Output is slightly lower than the LZ9 at 233 hp (174 kW) and 240 ft·lbf (332 N·m).
This engine is used in the following vehicles:
- 2007–2008 Chevrolet ImpalaChevrolet ImpalaThe Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year. Deriving its name from the southern African antelope, Chevrolet's most expensive passenger model through 1965 had become the best-selling automobile in the United...
LGD
The LGD 3900 is a flexible fuel version of the LZ9, and like its 3.5 L counterpart the LZE, it can run on E85E85
E85 is an abbreviation for an ethanol fuel blend of up to 85% denatured ethanol fuel and gasoline or other hydrocarbon by volume. E85 is commonly used by flex-fuel vehicles in the US, Canada, and Europe. Some of the benefits of E85 over conventional gasoline powered vehicles include the potential...
, pure gasoline or any mixture of the two. Output is identical to the LZ9.
- 2007–2009 Buick TerrazaBuick TerrazaThe Buick Terraza is a minivan from General Motors' Buick brand that was sold from the 2005 through 2007 model years. It filled the position of GM's luxury minivan that was previously occupied by the Oldsmobile Silhouette until the division's demise in 2004...
/Chevrolet UplanderChevrolet UplanderThe Chevrolet Uplander is a minivan produced by the Chevrolet division of General Motors. It replaced the Venture and Astro. Although introduced for the 2005 model year, it overlapped with the final model years of the Venture and Astro. It was built on the same platform as the Saturn Relay, Buick...
/Pontiac MontanaPontiac MontanaThe Pontiac Montana is a minivan from the Pontiac division of General Motors. Prior to the 1997 model year, it was known as Pontiac Trans Sport. In 1997, the Trans Sport added the Montana moniker as part of an available trim package. The package proved so popular the line was renamed Montana in... - 2009–2011 Buick LucerneBuick LucerneThe Buick Lucerne is a full-size car sold by the Buick division of General Motors. Introduced at the 2005 Chicago Auto Show, the Lucerne replaced both the Park Avenue and the LeSabre for the 2006 model year, and was sold through the 2011 model year...
/Chevrolet ImpalaChevrolet ImpalaThe Chevrolet Impala is a full-size automobile built by the Chevrolet division of General Motors introduced for the 1958 model year. Deriving its name from the southern African antelope, Chevrolet's most expensive passenger model through 1965 had become the best-selling automobile in the United...
LZG
The LZG 3900 is a flexible fuel version of the LZ9 that replaces the LZ8 in the Chevrolet Impala. It keeps the Active Fuel ManagementActive Fuel Management
Active Fuel Management is a trademarked name for the automobile variable displacement technology from General Motors. It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy...
system introduced on that engine and produces a nearly identical 233 hp (174 kW) and 240 ft·lbf (325 N·m).
See also
- GM 60-Degree V6 engineGM 60-Degree V6 engineThe General Motors 60° V6 family of engines began with the 1980 Chevrolet 2.8 L V6 and continues to be produced today . Its use in the X-body cars leads some to refer to it as the X engine.It is a 60° vee block with pushrod heads, except for a single DOHC member, the LQ1...
Technological ancestor of the GM High Value V6. - List of GM engines
- GM High Feature engineGM High Feature engineThe 3600 LY7 are members of General Motors' new High Feature engine family of modern DOHC V6s. This new family of engines was introduced in 2004 with the Cadillac CTS. Holden sells the HFV6 under the name Alloytec. The High Feature moniker on the Holden produced engine is reserved for the twin...