GM High Feature
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.
http://en.wikipedia.org/wiki/GM_High_Feature_engine
GM High Value engine
The
High Value engine family from
General Motors is a group of large
pushrod V6 engines. They use the same 60 vee bank as the older 60 degree DOHC V6
family, but the new 99 mm bore required expanding the bore spacing by 1.5 mm. These engines feature optional
displacement on demand which can deactivate one bank of cylinders under light load to increase economy. Another future addition is a 3-valve design and
variable valve timing, unprecedented technologies for a
pushrod engine design. Some of the High Value engines will be produced in
China by
GM Shanghai
and imported into the United States, while most will come from
Tonawanda, New York.
http://en.wikipedia.org/wiki/GM_High_Value_enginehttp://en.wikipedia.org/wiki/GM_High_Feature_engine
