What we call the LS engine series is really just all of the engines from General Motors’ Gen III and Gen IV small-block V8 groups. It was automotive enthusiasts who gave the “LS Engine Series” its name. It Doesn’t Have to Say “LS” to be an LS Engine (Hello, Vortec) We’re going to clear up as much uncertainty as we can. Know Your LS EnginesĮven among experienced mechanics and auto enthusiasts, there is a lot of confusion about General Motors’ naming convention for the LS engine series. That means understanding the various technical nuances of each LS RPO code, so you know which new parts to buy, or what old parts to salvage on your next trip to the junkyard. So if you’re going to swap or modify an LS, the first thing you’ll need to know is which particular engine you have or want, and how to find it (should you choose to not go with one of the many LS crate enginesavailable). There are several engines within the LS family. So we’re going to deliver those details, and we’re not going to take anything for granted in the process. And dropping an LS motor into another vehicle-particularly any car or truck previously powered by a small block Chevy-is as simple as engine swapping gets.Īs is often the case, the devil tends to be in the details. Both factory and aftermarket LS parts are readily available. We know you get it-LS engines are really popular. They’re ideal for both tame daily driver builds, as well as high-performance street or race applications north of 1,000 horsepower. In an automotive context, it’s not hyperbole to say the LS engine changed the world.īecause LS blocks share similar exterior dimensions, the vast majority of LS engines can fit anywhere that a small block Chevy 350 can. Not only did the LS engine platform provide opportunity for making unprecedented power in a small-block mill, it did so while meeting modern fuel economy and emission standards. The lightweight engine made big-block horsepower in a package no bigger than the engine-swapping community’s previous hero-the small block Chevy. (Image/GM)Ĭhevrolet introduced the automotive world to the LS engine with the launch of the LS1 in the 1997 Corvette C5.
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