The sky was really the limit when it came to customizing an LS. LS-series engines powered a large portion of GM's lineup for almost 20 years. In that time the platform gained a reputation as a ...

Only in production until 2009, we ranked the LS4 as the worst of all the LS engines, thanks in part to ... I'm looking at the "instant mpg" on the info center. Haven't had to add any oil either." ...