Welcome to a whole new era at GM Performance Parts! For years the automotive aftermarket has been shrouded in secrecy with only the “in crowd” having the inside track on what works and what doesn’t. Starting now, GM Performance Parts is going to do something about that. Working with our own GM Performance Parts Engineers and borrowing from decades of experience from building industry-leading crate engines, we are going to make all of our engine data available to the world. It’s called the GM Performance Parts Engine Dyno Configurator, and you can only find it at gmperformanceparts.com. At the GM Performance Parts Configurator, you’ll be able to pick a crate engine, start swapping parts, put it on the virtual dyno, and see real numbers—not extrapolated guesses—for yourself. Print the dyno run off, pick another engine, swap out the camshaft, swap on a different set of heads, and do it all over again. The combinations are endless! The GM Performance Parts Engine Dyno Configurator has allowed us to pick the top combinations from our expansive high performance portfolio. And, while we’ve just started this massive engineering exercise, we wanted to start sharing our findings with you right now! Starting with this 2007 GM Performance Parts catalog, we’ll be publishing our favorite combinations for making power. Called the GM Performance Parts Power Packages, the selected parts will work together to maximize the potential of your given combination. There’s a lot of experience and years of hard work represented in the Power Packages, so let’s take a look at what our engineers tell us are some of the hottest parts in the GM Performance Parts inventory!

Tags: ZZ4 Power Packages From GM Performance Parts

The ZZ4 brings you a few more upgrades right from the factory. They include aluminum heads, an upgraded camshaft, and aluminum dual-plane intake manifold. Still, there are improvements in power that can be made with the ZZ4 as we found out on the GM Performance Parts Engine Dyno Configurator. Here’s a sample of what a few component upgrades can do for the timeless ZZ4.

HT383 Power Packages From GM Performance Parts

The HT383 (or High Torque 383) represents an incredible value in a crate engine replacement for your truck or heavy project car. With 383 cubic inches, all you need to do is open up the intake, add some more efficient heads, and perhaps install a larger camshaft to really make some power. Check out these combinations that we demonstrated for you on the GM Performance Parts Engine Dyno Configurator:

More Power Packages on the way from GM Performance Parts!

That is just a taste of the Power Packages that we have already tested. And, we will be testing thousands more during the 2007 race season. As stated, these are proven collections of parts that have delivered the goods for years. Our favorite Power Package combinations will be published annually in the GM Performance Parts catalog, or better yet, you can see all of the GM Performance Parts Power Packages at our website (gmperformanceparts.com). Pick the crate engine and components that most interest you, and run the dyno for yourself.

Within the first quarter of 2007, you’ll be able to find detailed combinations and dyno information on the entire small block V-8 engine family, the 502 big block, and the LS2 crate engine from GM Performance Parts. How do head swaps, camshaft changes, and high-flow intake affect their performance? Tune into the Engine Dyno Configurator at gmperformanceparts.com to find out for yourself.

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