what does ls engine mean
The GM LS engine family is an engine design intended as the only V-8 engine utilized 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. Some LS engines are all-aluminium, especially the performance oriented engines, while others are cast iron, and all LS engines have 6-bolt main bearing caps.