Learn on Monday, wrench smarter on Sunday. Introducing a NEW series on /DRIVE, aimed at educating you to build a faster, better, more reliable car: /ENGINEERED. We want to empower our fellow enthusiasts to know more, and do more, by learning from some of the best engineers in the game. This week , we ask Tom Nelson (of Nelson Racing Engines) to explain WHY the Chevrolet LS engine is the reliable legend that it is.