General Motors LS-based small-block engine: Difference between revisions

Revision as of 15:07, 6 October 2004

Revision as of 15:08, 6 October 2004

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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=

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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.

==Vortec engines==

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 IV=