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The '''LS''' is '''Generation III''' and '''Generation IV''', the latest evolution of [[General Motors]]' line of [[GM Small-Block engine|small-block]] [[V8]] engines. The LS series is an evolution of the [[GM LT engine|LT family]] but is all-aluminum and has 6-bolt mains. New intake and injection technology and [[coil-on-plug]] ignition boosts performance. The LS engine has been the sole powerplant of the [[Chevrolet Corvette]], and has also been used in the [[Pontiac GTO]], the [[Cadillac CTS|Cadillac CTS V-series]], and the late Camaro/Firebird V8 models.
The [[GM Vortec engine|Vortec]] [[GM Vortec engine#4800|4800]], [[GM Vortec engine#5300|5300]], and [[GM Vortec engine#6000|6000]] are cast-iron versions of the LS1 engine with different bore and stroke dimensions.
=Generation III=
The '''Generation III''' small-blocks replaced the LT family in 1998. These shared the same displacement but were aluminum (for cars) and had improved ignition and intake systems.
==LS1==
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* 1998-2002 [[Pontiac Firebird]] Formula and Trans-Am
* 2004 [[Pontiac GTO]]
==LS6==
The '''LS6''' is a higher-output version of [[Chevrolet]]'s [[small-block]] LS1 engine. It is an all-aluminum 5.7 liter (5665 cc) [[pushrod]] engine and produces 405 hp (302 kW) and 400 ft.lbf (542 Nm) of torque. It is used in the high-performance C5 [[Chevrolet Corvette|Corvette]] Z06 model and the [[Cadillac CTS]] V-Series. The C6 Corvette Z06 will get a new [[GM LS engine#LS7|LS7]].▼
The LS6 shares its block with the [[GM LS1 engine]], but other changes were made. Improved intake, a titanium exhaust, higher-lift cams, and higher compression boosts output, and a new oiling system is better suited to high lateral acceleration.▼
=Generation IV=
Hot on the heels of the Generation III was '''Generation IV'''. These big-bore engines are some of the largest small-blocks yet, and will quickly replace the previous generation.
==LS2==
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The LS2 debuted in the 2005 [[Chevrolet Corvette]], and will be used in the 2005 [[Pontiac GTO]].
==
▲The '''LS6''' is a higher-output version of [[Chevrolet]]'s [[small-block]] LS1 engine. It is an all-aluminum 5.7 liter (5665 cc) [[pushrod]] engine and produces 405 hp (302 kW) and 400 ft.lbf (542 Nm) of torque. It is used in the high-performance C5 [[Chevrolet Corvette|Corvette]] Z06 model and the [[Cadillac CTS]] V-Series. The C6 Corvette Z06 will get a new [[GM LS engine#LS7|LS7]].
▲The LS6 shares its block with the [[GM LS1 engine]], but other changes were made. Improved intake, a titanium exhaust, higher-lift cams, and higher compression boosts output, and a new oiling system is better suited to high lateral acceleration.
==LS7==
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==See also==
* [[GM Small-Block engine]] - Generation I
* [[GM LT engine]] - Generation II
* [[Chevrolet Corvette]]
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