Twin-turbo (in some models)
Single-turbo (in the 2.8L LP9 and LAU)
Fuel system
Sequential multi-port fuel injection Direct injection
Fuel type
Gasoline, E85, LPG
Oil system
Wet sump
Cooling system
Water-cooled
Output
Power output
201–464 hp (150–346 kW; 204–470 PS)
Torque output
182–445 lb⋅ft (247–603 N⋅m)
Emissions
Emissions target standard
Euro 6
Chronology
Predecessor
Buick V6 engine
54° V6
GM High Value engine
LX5 (Shortstar)
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.[citation needed]
GM's Australian auto division Holden produced a HFV6 engine under the name "Alloytec."
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