The GM LS engine family is an engine design intended as the only V-8 engine used in General Motors' line of rear-wheel-drive cars and trucks. The LS series was a "clean sheet" design with little in common with the classic Chevrolet small block V8

Chevrolet Small-Block engine

The Chevrolet small-block engine is a series of automobile V8 engines built by the Chevrolet Division of General Motors using the same basic small engine block...

. Some LS engines are all-aluminium

Aluminium

Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....

, especially the performance oriented engines, while others are cast iron, and all LS engines have 6-bolt main bearing

Bearing (mechanical)

A bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as well as by the directions of applied loads they can...

 caps.

The LS engine has been the sole powerplant of the Chevrolet Corvette

Chevrolet Corvette

The Chevrolet Corvette is a sports car by the Chevrolet division of General Motors that has been produced in six generations. The first model, a convertible, was designed by Harley Earl and introduced at the GM Motorama in 1953 as a concept show car. Myron Scott is credited for naming the car after...

 since 1997 and has seen use in a wide variety of other General Motors vehicles, ranging from sport coupes

Pontiac Firebird

The Pontiac Firebird was built by the Pontiac division of General Motors between 1967 and 2002. The Firebird was introduced the same year as the automaker's platform-sharing model, the Chevrolet Camaro...

 to full size trucks

Chevrolet Silverado

The Chevrolet Silverado , is the latest line of full-size pickup trucks from General Motors.-History:...

.