GM High Feature engine explained

GM High Feature V6
Manufacturer:General Motors
Aka:Alloytec V6
Production:2004–present
Configuration:60° V6
Block:Aluminum
Head:Aluminum
Valvetrain:DOHC 4 valves × cyl. with VVT
Fuelsystem:Sequential multi-port fuel injection
Direct injection
Fueltype:Gasoline, E85, LPG
Oilsystem:Wet sump
Coolingsystem:Water-cooled
Turbocharger:Twin-turbo (in some models)Single-turbo (in the 2.8L LP9 and LAU)
Compression:9.5:1, 10.0:1, 10.2:1, 10.3:1, 11.3:1, 11.5:1, 11.7:1, 12.2:1
Redline:6500–7200
Emissions Level:Euro 6
Power:NaN0NaN0
Torque:NaN0NaN0

The GM High Feature engine (also known as the HFV6, and including the 3600 LY7 and derivative LP1) is a family of modern DOHC V6 engines produced by General Motors. The series was introduced in 2004 with the Cadillac CTS and the Holden Commodore (VZ).

It is a 60° 24-valve design with aluminum block and heads and sequential multi-port fuel injection. Most versions feature continuously variable cam phasing on both intake and exhaust valves and electronic throttle control. Other features include piston oil-jet capability, forged and fillet rolled crankshaft, sinter forged connecting rods, a variable-length intake manifold, twin knock control sensors and coil-on-plug ignition. It was developed by the same international team responsible for the Ecotec, including the Opel engineers responsible for the 54° V6, with involvement with design and development engineering from Ricardo plc.

GM's Australian auto division Holden produced a HFV6 engine under the name "Alloytec."

History

The HFV6 was designed, tested, and produced in a joint program by Holden and Cadillac. A majority of designs into the new alloy construction, transmission pairing, and first use in production were all undertaken in Detroit (and manufactured in St. Catharines, Ontario). Holden was charged with developing smaller engines (Holden 3.2 LP1 and Saab 2.8 Turbo LP9) as well as their own Holden 3.6 and 3.0 HFV6 (called the Alloytec V6) for local models.

Cadillac and Holden both tested variations of these engines in the United States and Australia.

2.8

LP1

A 2792cc LP1 variant was introduced in the 2005 Cadillac CTS. It was also used on the Chinese 2008 CTS. It has a NaN2NaN2 bore and stroke, sequential multi-port fuel injection and a 10.0:1 compression ratio. The LP1 was built in St. Catharines, Ontario.

Applications:

Year(s)ModelPowerTorque
2007–2009Buick Park Avenue (China)2010NaN0 @ 6500 rpm1950NaN0 @ 2600 rpm
2005–2007Cadillac CTS2100NaN0 @ 6500 rpm1940NaN0 @ 3300 rpm
2008-2010Cadillac CTS2100NaN0 @ 6800 rpm1820NaN0 @ 3600 rpm
2007–2009Cadillac SLS (China)2090NaN0 @ 6500 rpm1940NaN0 @ 3300 rpm

LP9

This engine is also known as a A28NET, Z28NET, Z28NEL or B284.

The LP9 is a 2.8L turbocharged version used for the Saab 9-3, Saab 9-5, and other GM vehicles. It has the same bore and stroke as the naturally aspirated LP1, however the compression ratio is reduced to 9.5:1. The engine is manufactured at Holden's Fishermans Bend engine factory in Port Melbourne, Australia, while GM Powertrain Sweden (formerly Saab Automobile Powertrain) is responsible for turbocharging the engine. Global versions of this engine use the same horsepower rating for both metric and imperial markets – mechanical horsepower – while the Europe-only versions are rated in metric horsepower.

Applications:

Year(s)ModelPowerTorque
2005–2008Opel/Vauxhall Vectra2270NaN0 @ 5500 rpm3300NaN0 @ 1900-4500 rpm
2005–20082270NaN0 @ 5500 rpm3300NaN0 @ 1900-4500 rpm
2006–20082470NaN0 @ 5500 rpm3500NaN0 @ 1900-4500 rpm
20052470NaN0 @ 5500 rpm3500NaN0 @ 1900-4500 rpm
2006–20082760NaN0 @ 5500 rpm3500NaN0 @ 1900-4500 rpm
2006–2009Cadillac BLS2470NaN0 @ 5500 rpm3500NaN0 @ 1900-4500 rpm
2006–2008Saab 9-3 Aero2470NaN0 @ 5500 rpm3500NaN0 @ 1900-4500 rpm
20092760NaN0 @ 5500 rpm4000NaN0 @ 1900-4500 rpm
2008Saab 9-3 Turbo X2760NaN0 @ 5500 rpm4000NaN0 @ 1900-4500 rpm
2008Saab 9-3 Aero Convertible2520NaN0 @ 5500 rpm3500NaN0 @ 1900-4500 rpm
20092760NaN0 @ 5500 rpm3700NaN0 @ 1900-4500 rpm

LAU

The LAU is GM's new code for the LP9 Turbo engine, its usage starting with the 2010 Cadillac SRX.[1] In 2011, production of the Cadillac SRX with the LAU engine ceased, but the engine remained in use in the Saab 9-4X until 2012, when production of that model came to an end.[2] [3]

Applications:

Year(s)ModelPowerTorque
2010–2011Cadillac SRX3000NaN0 at 5500 rpm2950NaN0 at 2000 rpm
2011–2012Saab 9-4X3000NaN0 at 5500 rpm2950NaN0 at 2000 rpm
2009–2013Opel/Vauxhall Insignia2560NaN0 @ 5500 rpm3500NaN0 @ 1900–4500 rpm
2009–2013Opel/Vauxhall Insignia OPC/VXR3210NaN0 @ 5250 rpm4350NaN0 @ 1900–4500 rpm
2010–2012Saab 9-5 Turbo6 XWD /Aero2960NaN0 @ 5500 rpm4000NaN0 @ 2000 rpm

3.0

LF1

The LF1 is a 2994cc version with a bore and stroke of NaN2NaN2 produced between 2010 and 2014, equipped with spark ignition direct injection (SIDI) and a 11.7:1 compression ratio.

Applications:

Year(s)ModelPowerTorque
2010Buick LaCrosse2550NaN0 @ 6950 rpm2170NaN0 @ 5600 rpm
2010–2012Buick Park Avenue (China)2510NaN0 @ 6700 rpm2180NaN0 @ 2900 rpm
2010–2011Cadillac CTS2700NaN0 @ 7000 rpm2230NaN0 @ 5700 rpm
2011–2013Cadillac SLS (China)2680NaN0 @ 7000 rpm2210NaN0 @ 5600 rpm
2010–2011Cadillac SRX[4] 2650NaN0 @ 6950 rpm2230NaN0 @ 5100 rpm
2010–2012Chevrolet Equinox2640NaN0 @ 6950 rpm2220NaN0 @ 5100 rpm
2010–2012GMC Terrain2640NaN0 @ 6950 rpm2220NaN0 @ 5100 rpm
2010Holden Commodore2550NaN0 @ 6700 rpm2140NaN0 @ 2900 rpm
2011Saab 9-4X2650NaN0 @ 6950 rpm2230NaN0 @ 5100 rpm
2011Chevrolet Captiva2550NaN0 @ 6900 rpm2120NaN0 @ 5800 rpm
2012Chevrolet Malibu (Middle East)[5] 2600NaN0 @ 6900 rpm2140NaN0 @ 5600 rpm

LFW

The LFW is a flexible fuel version of the LF1, capable of running on E85, gasoline, or any mixture of the two. Output is identical to the LF1.

Applications:

Year(s)ModelPowerTorque
2011-2017Buick GL8 (China only)2540NaN0 @ 6800 rpm2140NaN0 @ 5200 rpm
2011–2012Chevrolet Equinox2640NaN0 @ 6950 rpm2220NaN0 @ 5100 rpm
2011–2012GMC Terrain2640NaN0 @ 6950 rpm2220NaN0 @ 5100 rpm
2012–2013Cadillac CTS2700NaN0 @ 7000 rpm2230NaN0 @ 5700 rpm
2012–2013Chevrolet Captiva Sport2640NaN0 @ 6950 rpm2220NaN0 @ 5100 rpm
2010–2017Holden Commodore (VE) and VF2540NaN0 @ 6800 rpm2140NaN0 @ 5200 rpm

3.2

Holden has built its own 3195cc version of the High Feature engine in Australia produced between 2005 and 2010 with a bore and stroke of NaNmm. Branded with the Alloytec name like the 3.6L version, this version produces 2270NaN0 at 6600 rpm and 2970NaN0 at 3200 rpm. It has a 10.3:1 compression ratio. Its fuel economy is NaNkm/L in city, and NaNkm/L on highway.. Holden also produced the 3.2L engines that were used by Alfa Romeo as the basis of its JTS V6 engine.

Applications:

3.6

3.6
Production:2004–present
Bore:94mm
Stroke:85.6mm
Displacement:3564cc
Compression:10.2:1, 11.3:1, 11.5:1
Fueltype:Gasoline, Autogas (LPG), E85
Weight:168kg (370lb) (3.6L V6 High Feature engine)[6]

LY7

The 3564cc LY7 engine was developed primarily by Holden and introduced in the 2004 Holden VZ Commodore and 2004 Cadillac CTS sedan. It has a 10.2:1 compression ratio, Sequential multi-port fuel injection, and a bore and stroke of NaN2NaN2. Lower-powered versions only have variable cam phasing on the inlet cam (LE0). Selected models also include variable exhaust. The engine weighs 370lb as installed.

This engine is produced in several locations: St. Catharines (Ontario), Flint Engine South (Michigan), Melbourne (Australia), Ramos Arizpe (Mexico), and Sagara (Japan) by Suzuki.

Suzuki's engine designation is N36A.

The dual-fuel 2350NaN0 LW2 version was able to run on petrol and autogas. The LW2 engine was based on the low-output LE0 V6. It featured a factory-fitted dual-fuel system developed by IMPCO, different valves, and hardened titanium valve seats. This motor was available exclusively in Holden vehicles from 2005–2012.

Applications:[7]

Year(s)ModelPowerTorque
2004–2007Buick Rendezvous CXL/Ultra2420NaN0 @ 6000 rpm2320NaN0 @ 3500 rpm
2004–2007Cadillac CTS2550NaN0 @ 6200 rpm2520NaN0 @ 2800 rpm
2008–2009Cadillac CTS2630NaN0 @ 6200 rpm2530NaN0 @ 3100 rpm
2004–2009Cadillac SRX2550NaN0 @ 6500 rpm2540NaN0 @ 2800 rpm
2004–2005Holden VZ Commodore2350NaN0 @ 6000 rpm2360NaN0 @ 2800 rpm
2006–20072310NaN0 @ 6000 rpm2360NaN0 @ 2800 rpm
2004–2006Holden VZ CommodoreHolden WL Statesman,VZ Calais, VZ SV62550NaN0 @ 6500 rpm2510NaN0 @ 3200 rpm
2006–20072550NaN0 @ 6500 rpm2470NaN0 @ 3200 rpm
2005–2008Buick LaCrosse CXS2400NaN0 @ 6000 rpm2250NaN0 @ 2000 rpm
2005–2007Cadillac STS2550NaN0 @ 6500 rpm2520NaN0 @ 3200 rpm
2006–2007Holden VE Commodore Omega2400NaN0 @ 6000 rpm2430NaN0 @ 2600 rpm
2008–20092350NaN0 @ 6500 rpm2400NaN0 @ 2400 rpm
2006–2009Holden WM Statesman/Caprice2620NaN0 @ 6500 rpm2500NaN0 @ 2600 rpm
2007–2009Buick Park Avenue (China)2550NaN0 @ 6600 rpm2500NaN0 @ 2800 rpm
2007–2009Cadillac SLS (China)2510NaN0 @ 6500 rpm2520NaN0 @ 3200 rpm
2006–2011Holden Rodeo/Colorado2110NaN0 @ 6500 rpm2310NaN0 @ 2600 rpm
2007–2008GMC Acadia2750NaN0 @ 6600 rpm2510NaN0 @ 3200 rpm
2007Pontiac G6 GTP2520NaN0 @ 6300 rpm2510NaN0 @ 3200 rpm
2007–2009Saturn Aura XR2520NaN0 @ 6300 rpm2510NaN0 @ 3200 rpm
2007–2008Saturn Outlook XE single exhaust2700NaN0 @ 6600 rpm2480NaN0 @ 3200 rpm
2007–2008Saturn Outlook XR dual exhaust2750NaN0 @ 6600 rpm2510NaN0 @ 3200 rpm
2008Buick Enclave2750NaN0 @ 6600 rpm2510NaN0 @ 3200 rpm
2008–2012Chevrolet Malibu2520NaN0 @ 6300 rpm2510NaN0 @ 3200 rpm
2008–2009Chevrolet Equinox Sport2640NaN0 @ 6500 rpm2500NaN0 @ 2300 rpm
2008–2009Pontiac G6 GXP2520NaN0 @ 6300 rpm2510NaN0 @ 3200 rpm
2008–2009Pontiac G82560NaN0 @ 6300 rpm2480NaN0 @ 2100 rpm
2008–2009Pontiac Torrent GXP2640NaN0 @ 6500 rpm2500NaN0 @ 2300 rpm
2008–2009Saturn Vue XR / Red Line2570NaN0 @ 6500 rpm2480NaN0 @ 2100 rpm
2007–2009Suzuki XL-72520NaN0 @ 6500 rpm2430NaN0 @ 2300 rpm

LLT

The 3564cc LLT is a direct injected version based on the earlier LY7 engine. It was first unveiled in May 2006, and the DI version was claimed to have 15% greater power, 8% greater torque, and 3% better fuel economy than its port-injected counterpart. The LLT engine has a compression ratio of 11.3:1, and has been certified by the SAE to produce 3020NaN0 at 6300 rpm and 2720NaN0 of torque at 5200 rpm on regular unleaded (87 octane) gasoline. This engine debuted on the 2008 Cadillac STS and CTS.[8] [9] GM used a LLT in all 2009–2017 Lambda-derived crossover SUVs to allow class-leading fuel economy in light of the new Corporate Average Fuel Economy (CAFE) standards. In these crossovers, the LLT engine produced up to 2880NaN0 and 2700NaN0 of torque.[10] [11] [12]

Applications:

Year(s)ModelPowerTorque
2008–2011Cadillac CTS3040NaN0 @ 6400 rpm2730NaN0 @ 5200 rpm
2008–2011Cadillac STS3020NaN0 @ 6300 rpm2720NaN0 @ 5200 rpm
2009–2017Buick Enclave2880NaN0 @ 6300 rpm2700NaN0 @ 3400 rpm
2009–2017Chevrolet Traverse single exhaust2810NaN0 @ 6300 rpm2660NaN0 @ 3400 rpm
2009–2017Chevrolet Traverse dual exhaust2880NaN0 @ 6300 rpm2700NaN0 @ 3400 rpm
2009–2016GMC Acadia2880NaN0 @ 6300 rpm2700NaN0 @ 3400 rpm
2009Saturn Outlook single exhaust2810NaN0 @ 6300 rpm2660NaN0 @ 3400 rpm
2009Saturn Outlook dual exhaust2880NaN0 @ 6300 rpm2700NaN0 @ 3400 rpm
2009–2011Daewoo Veritas
2009–2011Holden VE Commodore SV62810NaN0 @ 6400 rpm2580NaN0 @ 2900 rpm
2009–2011Holden WM Statesman/Caprice2810NaN0 @ 6400 rpm2580NaN0 @ 2900 rpm
2010–2011Buick LaCrosse CXS2800NaN0 @ 6400 rpm2590NaN0 @ 5200 rpm
2010–2011Chevrolet Camaro3120NaN0 @ 6400 rpm2780NaN0 @ 5200 rpm
2010–2011Cadillac SLS (China)3070NaN0 @ 6400 rpm2760NaN0 @ 5200 rpm

LFX

The LFX is an enhanced version of the LLT engine developed jointly by Holden and Cadillac. Introduced in the MY2012 Holden Commodore SV6 and the MY2012 Chevrolet Camaro LS/LT, it is lighter than the LLT, thanks to a redesigned cylinder head, integrated exhaust manifold, and composite intake manifold. Other components like the fuel injectors, intake valves, and fuel pump have also been updated. They also included the addition of cam phasing and variable valve timing. Power and torque are up slightly from the LLT. The compression ratio is 11.5:1. The LFX also features E85 flex-fuel capability.

Applications:

Year(s)ModelPowerTorqueDyno chart
2012–2016Buick LaCrosse3030NaN0 @ 6800 rpm2640NaN0 @ 5300 rpmlink
2013–2015Cadillac ATS3210NaN0 @ 6800 rpm2740NaN0 @ 4800 rpmlink
2012–2014Cadillac CTS
(2014 Wagon & Coupe only)		3180NaN0 @ 6800 rpm2750NaN0 @ 4900 rpmlink
2014–2015Cadillac CTS
(2014 Sedan only)		3210NaN0 @ 6800 rpm2750NaN0 @ 4900 rpmlink
2012–2016Cadillac SRX3080NaN0 @ 6800 rpm2650NaN0 @ 2400 rpmlink
2013–2019Cadillac XTS3040NaN0 @ 6800 rpm2640NaN0 @ 5200 rpmlink
2012–2015Chevrolet Camaro3230NaN0 @ 6800 rpm2780NaN0 @ 4800 rpmlink
2012–2017Chevrolet Caprice PPV3010NaN0 @ 6700 rpm2650NaN0 @ 4800 rpmlink
2015–2016Chevrolet Colorado3050NaN0 @ 6800 rpm2690NaN0 @ 4000 rpmlink
GMC Canyonlink
2013–2017Chevrolet Equinox3010NaN0 @ 6500 rpm2720NaN0 @ 4800 rpmlink
2012–2016Chevrolet Impala/Impala Limited3020NaN0 @ 6500 rpm2620NaN0 @ 5300 rpm
2014–2020Chevrolet Impala3050NaN0 @ 6500 rpm2620NaN0 @ 5300 rpmlink
2013–2017GMC Terrain3010NaN0 @ 6500 rpm2720NaN0 @ 4800 rpmlink
2011–2015Holden Caprice2810NaN0 @ 6700 rpm2580NaN0 @ 2800 rpm
2011–2013Holden Commodore VE II (MY 2012)2810NaN0 @ 6700 rpm2580NaN0 @ 2800 rpm
2013–2017Holden Commodore VF 2810NaN0 @ 6700 rpm2580NaN0 @ 2800 rpm

LWR

The LWR is dedicated LPG 3.6-liter engine. Introduced in the MY2012 Holden Commodore, Based on the 3.6-litre LY7 engine, the LWR had a vapour injection system. The vapour injection system injected gas directly into the air intake runner, thereby preventing excess gas from circulating through the air intake system. Although liquid LPG injection generally produces more power, Holden justified vapour injection on the grounds of lower fuel consumption, lower emissions, reduced pumping and parasitic losses, and start-up reliability in hot weather.

The dedicated LPG LWR engine produced peak power and torque of 1800NaN0 at 6000 rpm and 3200NaN0 at 2000 rpm. The LWR engine was mated to GM's six-speed 6L45 automatic transmission and, over the combined ADR 81/02 test cycle, the Commodore Omega achieved fuel consumption of 11.8L/100 km – an improvement of 1.6L/100 km compared to its dual-fuel LW2 predecessor. Furthermore, the LWR engine exceeded Euro 6 emissions standards.

Applications:

Year(s)ModelPowerTorque
2012–2013Holden Commodore VE II (MY 2012)2410NaN0 @ 6000 rpm2360NaN0 @ 2000 rpm
2013–2015Holden Commodore VF2410NaN0 @ 6000 rpm2360NaN0 @ 2000 rpm
2012–2015Holden Caprice2410NaN0 @ 6000 rpm2360NaN0 @ 2000 rpm

LCS

The 3564cc LCS was derived from the direct-injected LLT for use in hybrids, using the two-mode system.[13] Differences from the LLT included a slightly lower compression ratio, 11.3:1, and lower power and torque peaks. It was to debut in the 2009 Saturn Vue Hybrid, where it would have made 2620NaN0 at 6100 rpm and 2500NaN0 of torque at 4800 rpm.[14] Fuel economy ratings would have been NaNkm/L in city, and NaNkm/L on highway. However, GM cancelled its plans for the Saturn Vue Hybrid.

LF3

The 3.6L twin-turbocharged version for the 2014 Cadillac CTS and XTS was announced at the 2013 NYAS.[15]

The engine is rated at 4200NaN0 of power at 5750 rpm and 4300NaN0 of torque at 3500–4500 rpm (with 90% of torque being available at 2500–5500 rpm) and helps the CTS achieve NaNmph time of 4.6 seconds with an 8-speed automatic transmission.

In essence, the twin-turbo 3.6L V6 is the forced-induction variant of the popular LFX V6 found in the Cadillac ATS, XTS, and SRX, among many other GM models, with several important upgrades, including:

Applications:

Year(s)ModelPowerTorqueDyno chart
2014–2019Cadillac XTS4040NaN0 @ 6000 rpm 3690NaN0 @ 1900–5600 rpmlink
2014–2019Cadillac CTS4200NaN0 @ 5750 rpm 4300NaN0 @ 3500–4500 rpmlink

LF4

The LF4 is a higher-performance variant of the LF3 for use in the Cadillac ATS-V. Changes to the LF3 include:

Applications:

Year(s)ModelPowerTorqueDyno chart
2016–2019Cadillac ATS-V, Cadillac ATS-V Coupe4640NaN0 @ 5850 RPM4450NaN0 @ 3500 RPM2016 link
2022–presentCadillac CT4-V Blackwing4720NaN0 4450NaN0

LFR

The LFR is a bi-fuel variant of the LFX, although multi-point fuel injection is used for both the gasoline and CNG instead of direct-injection.

Applications:

Year(s)ModelPowerTorqueDyno chart
2015–2017Chevrolet Impala Bi-FuelCNG 2320NaN0 @ 6000 RPMCNG 2180NaN0 @ 5200 RPM2016 CNG link
Gasoline 2580NaN0 @ 5900 RPMGasoline 2440NaN0 @ 4800 RPM2016 Gas link

LFY

The LFY is similar to the LFX, but adds stop-start technology and has improved airflow.[18]

Applications:

Year(s)ModelPowerTorque
2018–2024Buick Enclave3100NaN0 @ 6800 rpm 2660NaN0 @ 2800 rpm
2018–2023Chevrolet Traverse3100NaN0 @ 6800 rpm 2660NaN0 @ 2800 rpm

Fourth generation

Starting with the 2016 Cadillac models, a new generation of High Feature V6s were developed.[19] These new engines have redesigned block architectures with bore centers increased from 103abbr=onNaNabbr=on on prior HFV6 engines to 106abbr=onNaNabbr=on and a redesigned cooling system to target the hottest areas while also facilitating faster warm-up. They also incorporate engine start-stop technology, cylinder-deactivation, 2-stage oil pumps, and updated variable valve timing featuring intermediate park technology for late-intake valve closure. Both engines debuted in the 2016 Cadillac CT6.[20]

3.0 L

LGW

Bore and stroke of NaN2NaN2 are used, along with a 9.8:1 compression ratio and twin turbos with titanium-aluminide turbine wheels. Maximum engine speed is 6500 RPM. Premium unleaded fuel is required.

Applications:

LGY

Bore and stroke of NaN2NaN2 are used, along with a 9.8:1 compression ratio and twin turbos with titanium-aluminide turbine wheels. Maximum engine speed is 6500 RPM. Premium unleaded fuel is required.

Applications:

Year(s)ModelPowerTorqueDyno chart
2020–presentCadillac CT53350NaN0 @ 5600 RPM4050NaN0 @ 2400-4400 RPM
V: 3600NaN0 @ 5600 RPMV: 4050NaN0 @ 2400-4400 RPM

3.6 L

LGX

Along with the increased bore spacing, the new 3.6 L DI V6 has larger bores than before, growing from 94abbr=onNaNabbr=on to 95abbr=onNaNabbr=on with the same 85.8abbr=onNaNabbr=on stroke as the 3.0L LGW, for a displacement of 3649cc. Intake and exhaust valves are also increased in size along with other changes to the cylinder head.[21] The only part shared with the prior generation is the hydraulic lash adjusters in the valvetrain.[22] The LGX was benchmarked against the 3.7L VQ37VHR of the 2015 Infiniti Q40.[22] Compression ratio is 11.5:1 and maximum engine speed is 7200 RPM.

Compared to GM's LFX/LFY 3.6 L engine, the LGX features active fuel management, NVH enhancements and slightly more torque.[23]

The LGX was on Ward's 10 Best Engines for 2016.[24]

Applications:

Year(s)ModelPowerTorqueDyno chart
2016–2019Cadillac ATS3350NaN0 @ 6800 RPM2850NaN0 @ 5300 RPM2016 link
2016–2019Cadillac CT63350NaN0 @ 6800 RPM2840NaN0 @ 5300 RPM2016 link
2016–2019Cadillac CTS3350NaN0 @ 6800 RPM2850NaN0 @ 5300 RPM2016 link
2016–2024Chevrolet Camaro3350NaN0 @ 6800 RPM2840NaN0 @ 5300 RPM2016 link
2017–2019Buick LaCrosse3100NaN0 @ 6800 RPM2820NaN0 @ 5200 RPM
2018–2020Buick Regal GS3100NaN0 @ 6800 RPM2820NaN0 @ 5200 RPM
2018–2020Holden Commodore3150NaN0 @ 6800 RPM2810NaN0 @ 5200 RPM
2017–2025Cadillac XT53100NaN0 @ 6600 RPM2710NaN0 @ 5000 RPM
2017–2023GMC Acadia3100NaN0 @ 6600 RPM2710NaN0 @ 5000 RPM
2019–presentChevrolet Blazer3080NaN0 @ 6600 RPM2690NaN0 @ 5000 RPM
2020–presentCadillac XT63100NaN0 @ 6600 RPM2710NaN0 @ 5000 RPM

LGZ

The LGZ is a variant of the LGX designed for use in the Chevrolet Colorado and GMC Canyon.[25] [26]

Applications:

Year(s)ModelPowerTorque
2017–2022GMC Canyon3080NaN0 @ 6800 RPM2750NaN0 @ 4000 RPM
Chevrolet Colorado

7.2L V12

On March 21, 2007, AutoWeek reported that GM was planning to develop a 60-degree V12 based on this engine family to power the top version of Cadillac's upcoming flagship sedan. This Cadillac would essentially have had two 3.6L High Feature V6s attached crankshaft-to-crankshaft and would have featured high-end technologies including direct injection and cylinder deactivation. If this engine were developed, it would have displaced 7.2 liters, and produced approximately 6000NaN0 and 5400NaN0 of torque. Development of the engine was reportedly being conducted in Australia by Holden, with a potential HSV or Statesman application.[27]

In August 2008, GM announced that development of the V12 had been cancelled.[28]

Timing chain issues

Earlier production 2.8L, 3.0L, 3.2L, and 3.6L engines with the three chain design suffered from premature timing chain failures because of a faulty PCV system and extended oil change intervals. Most of the problems occurred on pre-LFX engines.[29]

Holden High Feature engine

Holden sold a HFV6 engine under the name Alloytec. The High Feature moniker on the Holden produced engine is reserved for the twin cam phasing high output version. The block was designed to be expandable from 2.8 L to 4.0 L. High Feature V6 engines were previously produced in Fishermans Bend, Port Melbourne, Australia, and remain in production at the following four manufacturing locations: St. Catharines Engine Plant, St. Catharines, Canada; Flint Engine South in Flint, Michigan, United States; Romulus Engine Plant in Romulus, Michigan; and Ramos Arizpe, Coahuila, Mexico. The assembly lines for the St. Catharines and Flint facilities were manufactured by Hirata Corporation at its powertrain facility in Kumamoto, Japan. Most of the designs of this motor happened in Flint. They were first produced for the Cadillac range. The engine block and cylinder heads are cast at Defiance Foundry in Defiance, Ohio.

External links

Notes and References

  1. Web site: GM Media Online: GM Canada English . Archives.media.gm.com . 2010-11-06.
  2. Web site: Cadillac SRX Turbo Model Axed . GM Inside News . 2011-01-02.
  3. Web site: New Saab 9-4X: Powertrain . Saab Media Online . 2011-01-02 .
  4. News: Sam . Abuelsamid . Detroit Preview: 2010 Cadillac SRX reborn . autoblog.com . 2009-01-04 . 2009-01-04.
  5. Web site: Press Kits . Media.gm.com . 2022-03-29.
  6. Web site: Holden's new Alloytec engine may chew as much fuel as the engine it replaces . 2009-06-23. goauto.com.au.
  7. Web site: GM News - United States - News . Media.gm.com . 2010-11-01 . 2010-11-06.
  8. News: Ed . Hellwig . Detroit Auto Show: 2008 Cadillac CTS . edmunds.com . 2007-01-08 . 2009-01-04 . dead. https://web.archive.org/web/20080318151630/http://www.edmunds.com/insideline/do/Features/articleId%3D119071 . 2008-03-18 .
  9. News: Reilly . Brennan . Cadillac Ups STS Horsepower Rating To 302 . nextautos.com . 2007-05-08 . 2009-01-04.
  10. Web site: Engine - Power Curve . https://web.archive.org/web/20090223203706/http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=39719&vehicleid=6650&section=engineAxle . dead. 2009-02-23 . Eogld.ecomm.gm.com . 2010-11-06 .
  11. Web site: Engine - Power Curve . https://web.archive.org/web/20090221093717/http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=36105&vehicleid=6795&regionID=1&section=oi_def . dead. 2009-02-21 . Eogld.ecomm.gm.com . 2010-11-06 .
  12. Web site: Engine - Power Curve . https://web.archive.org/web/20090223203432/http://eogld.ecomm.gm.com/NASApp/domestic/graytabcontroller.jsp?graytabtype=1&rpoid=40162&vehicleid=6858&section=engineAxle . dead. 2009-02-23 . Eogld.ecomm.gm.com . 2010-11-06 .
  13. Web site: Model Information - Online Ordering Guide . https://web.archive.org/web/20090221093723/http://eogld.ecomm.gm.com/NASApp/domestic/proddesc.jsp?year=2009&regionID=1&divisionID=10&type=0&vehicleID=6861&section=engineAxle&page=5&butID=3 . dead. 2009-02-21 . Eogld.ecomm.gm.com . 2010-11-06 .
  14. http://media.gm.com/us/powertrain/en/product_services/2009a/HPT%20Library/HFV6/2009%2036L%20Hybrid_SAE.pdf
  15. Web site: Cadillac Twin-Turbo Debuts in All-New 2014 CTS Sedan . Media.gm.com . 2013-03-18 . 2022-03-29.
  16. Web site: Cadillac ATS-V Expands Lineup, Intensifies Passion. GM Media USA. GM. 19 November 2014.
  17. Web site: 2016 Cadillac ATS-V Coupe and Sedan: 455 M3-Baiting Horsepower!. Car & Driver. 18 November 2014. Car & Driver. 19 November 2014.
  18. Web site: GM 3.6 Liter V6 LFY Engine. 19 April 2017.
  19. Web site: All-New, Advanced 3.6L V-6 to Drive Cadillac CT6. 5 April 2015. 20 March 2015.
  20. Web site: Cadillac Next-Gen V-6 Engines Led by 3.0L Twin Turbo. GM Media USA. 20 March 2015. GM. 20 March 2015.
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  24. Web site: Electrics Charge up 10 Best Engines List | Engines content from WardsAuto . https://web.archive.org/web/20151215013007/http://wardsauto.com/engines/electrics-charge-10-best-engines-list?page=2 . 2015-12-15 .
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