There are very few engine upgrade packages that provide more real “bang for the buck” performance on the Gen III V-8 than the addition of CNC-ported cylinder heads, an intake, a camshaft, a pair of long-tube exhaust headers, and a modified engine control calibration. In this chapter, we’ll show you how to bolt on these […]

Knowing all the technical aspects of the Gen III V-8 engine is interesting, but more than likely, the information you really want to know is how to improve its performance. That’s why this article is about aftermarket components that can be bolted on to the stock Gen III LS1 V-8 engine for power increases. Below, […]

As simple as it may seem, just getting the Gen III V-8 out of a production vehicle can be frustrating if you haven’t done it before. Because of this, the following chapter covers as much detail as possible with visual support to show how to remove and reinstall (R & R) a Gen III V-8 […]

If there is one great aspect to General Motor’s small-block V-8s, it is that they have a lot in common. This is especially true with the Gen III V-8. It means parts off the Z06 Corvette engine, the LS6, fit on 6.0-liter Gen III truck engines without a lot of work. So, this is the […]

The General Motors (GM) Gen III LS1 V-8 is one of the many successful engines to come out of GM Powertrain since it was formed to be the global powertrain provider for GM. As this book goes to print, about 8,000 Gen III small-block V-8 engines are built each day, in multiple cubic inch and […]

There are a few acts of creation an automobile company must be great at if it plans on being successful in the car business. These actions usually include being able to: Design and build visually pleasing, high quality, and durable automobile bodies/chassis. Design and build powerful, reliable, and efficient powertrains. Refine the components and systems […]

Maximizing the performance of a supercharged or turbocharged vehicle includes more than the power adder itself. A number of supporting components in the powertrain and chassis require upgrades or attention to not only realize the full horsepower potential of the forced-induction system, but to ensure long-term durability by supporting the greater load imposed by the […]

With a stout short-block filled with an all-forged rotating assembly, the remainder of a boost-ready engine assembly includes the cylinder heads and crucially important camshaft. All LS engines benefit from excellent cylinder-head airflow—some more than others—but it is the camshaft that is the key not only to optimal power but drivability characteristics.   This tech […]

Builders seeking performance beyond the realm of bolt-on supercharger and turbocharger kits— exceeding about 10 pounds of boost, or so—likely need to consider the construction of a custom engine assembly designed specifically for forced induction. In the simplest terms, that means replacing the factory cast rotating parts with premium, forged components; ensuring greater head-clamping power […]

In the most basic terms, electronically controlled engines must be carefully calibrated to take advantage of engine modifications that affect airflow and fuel delivery requirements. That is more imperative for forced-induction engines, which process significantly more air than a comparable, naturally aspirated engine—and do it under positive manifold pressure.   This tech tip is from […]