GM High Feature engine
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{{Infobox Automobile
|name=High Feature V6
|aka=Alloytec V6
|manufacturer=General Motors
|production=2004–
|predecessor=54° V6
|class=DOHC 60° 24-valve V6
|engine=3.6 L (3564 cc/217 in³)
2.8 L (171 in³)
3.2 L (195 in³)
|similar=Chrysler SOHC
Ford Cyclone
Honda J-series
Nissan VQ
Toyota GR
}}
The 3600 LY7 (and derivative LP1) are members of General Motors' new High Feature (or HFV6) 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 block was designed to be expandable from 2.8 L to 4.0 L.
It is a 60° 24-valve design with aluminum block and heads and Sequential Electronic 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 crankshaft and connecting rods, variable intake, and electronic throttle control. 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 of England.
High Feature V6 engines are produced at Fisherman's Bend in Port Melbourne, Australia, St. Catharines in Canada, and Flint Engine South in Flint, Michigan.
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Alfa Romeo
Alfa Romeo also uses the High Feature engine design, though with many modifications, as the JTS V6. The Alfa unit features lean-burn technology as on many other engines from the company. It displaces 3.2 L and has an output of 190 kW (255 hp) at 6200 rpm and 322 N·m (237 ft·lbf) torque.
Applications:
- 2005 Alfa Romeo 159
- 2005 Alfa Romeo Brera
- 2006 Alfa Romeo Sportwagon
- 2006 Alfa Romeo Spider
Suzuki
Suzuki will build its own version of the High Feature V6 at its Sagara, Japan plant for the Suzuki XL-7 SUV. This engine produces 250 hp (185 kW) and 243 ft·lbf (329 N·m).
LY7
The 3.6 L (3564 cc) LY7 version was introduced in the 2004 Cadillac CTS sedan. It has a 10.2:1 compression ratio and produces 255 hp (190 kW) and 252 ft·lbf (342 N·m). The bore is 3.70 in (94.0 mm) and the stroke is 3.37 in (85.6 mm). In some applications, including the Buick LaCrosse and base Holden Commodore, the LY7 has an ouput of 235 to 240 hp (175 to 179 kW) and 230 ft·lbf (312 N·m). The Holden Alloytec version has been modified to meet Euro3 emissions standards.
This engine is used in:
- 2004 Cadillac CTS
- 2004 Buick Rendezvous CXL/Ultra
- 2004 Cadillac SRX
- 2004 Holden Commodore VZ
- 2005 Buick LaCrosse CXS
- 2005 Cadillac STS
- 2007 Saturn Aura
LP1
A 2.8 L LP1 variant was introduced in the 2005 Cadillac CTS.
This engine is used in:
- 2005–present Cadillac CTS
Turbo
Image:2006 Saab 9-3 SportCombi engine.jpg A 2.8 L turbocharged version is used for the Saab 9-3 and other GM vehicles. It will produce 250 hp DIN (184 kW) and 258 ft·lbf (350 N·m). There is also another variant available, with 230 hp DIN (169 kW). The engine is partly developed by Saab Automobile, and built in Australia. This engine is used in:
- 2007 Cadillac BLS
- 2006 Opel Vectra
- 2006 Opel Signum
- 2006 Saab 9-3