LS Engine DIY

Do It Yourself LS Engines

LS Engine Rebuilds: Pre-Assembly Guide

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Let’s be honest: at this point, you’re probably getting a bit tired of reading each chapter introduction. Each one contains parent-like nagging of the importance of the material therein, and threatens you with grave consequences for not paying attention to detail. However, attention to detail is what an engine rebuild is all about, and even […]

LS Engine Rebuilds: Component Preparation Guide

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OK, so you have all of your parts in hand, whether brand-new or freshly machined. We’re definitely making progress toward enjoying a fresh Gen III/IV engine—but let’s fast forward a moment. Say you’ve got your rebuilt engine up and running, and everything is going great. You’re enjoying the new-found power of your LS-equipped ride, and […]

LS Engine Rebuilds: Machine Shop Guide

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Now that you’ve disassembled your engine and selected the engine components you’ll be using (or reusing) in your new engine, the next step is to select a machine shop to work with for your rebuild project.   This Tech Tip is From the Full Book, HOW TO REBUILD GM LS-SERIES ENGINES. For a comprehensive guide on […]

LS Engine Rebuilds: Disassembly Guide

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Now that you’ve got a place to work in and the right tools in hand, you’re probably anxious to get your LS engine apart. To the untrained eye, the teardown of a worn or broken engine might seem nothing more than a necessary evil—the greasy prelude to an engine rebuild, and one that you’d just […]

Intro to GM’s LS Gen III and Gen IV: The Small-Block Chevy Reborn

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So you’re thinking about rebuilding your Gen III/IV General Motors small-block? Congratulations—an engine rebuild can be a very rewarding task. Right now, the prospect of enjoying a freshened engine probably excites you most; but we hope that with the help of this book, you’ll enjoy the actual rebuilding process as well!   This Tech Tip […]

LS SWAPS: Wiring Harness and Wiring Guide

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The wiring aspect of any LS swap is undoubtedly the most difficult. Most builders are familiar with fabrication techniques, trouble shooting, and parts swapping to make things work, but electronics rise to a much higher level of complexity. Wiring has carried an aura of mystery that can send a shiver down the spine of even […]

LS SWAPS: Fuel Systems Guide

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Fuel-injection systems require careful planning and component selection. There are many components that go into a fuel system (including tank, fuel pump, lines, fittings, and filters) and each one has multiple replacement/upgrade options. So, simply installing an electric fuel pump is not going to work. The fuel-pressure requirements alone necessitate some detailed planning.   This […]

LS SWAPS: Engine Management Systems Guide

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Each engine requires its own computer, and the programming must match the engine, so computers can’t be swapped even if the plugs are the same type. General Motors produces several computer types and each is built for a specific engine group. Some work with many engines, and some only work with one. It is very […]

LS SWAPS: Accessory Drives and Cooling System Guide

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Stock accessory drives were designed to fit in late-model vehicles with modern frames and spacing. Depending on which accessory drives are retained, clearance may or may not be an issue. However, the A/C compressor constantly presents an issue. It’s typically mounted low on the passenger’s side of the engine, and it tends to hit the […]