GM Performance


We can do so much more than transmissions, light engine, front end, and exhaust work on your vehicle. We have done dozens of performance modifications on a variety of GM vehicles. We are LS and LT engine specialists, and can give you the performance edge you’re looking for!

From complete engines to cylinder head swaps, cam swaps, headers, and even Cylinder Deactivation, Active Fuel Management and Variable Valve Timing delete kits. We use parts from our preferred suppliers like Speed Engineering, Kentucky Speed, Scoggin-Dickey Performance, and Tick Performance, as well as other GM performance suppliers.

The first step is to come in and let us know what you want to build. Because of our experience, we’ll  be able to guide you to the right mods for your goals, and budget. We’ll put together a plan, and we’ll get started on the step by step process of building the performance engine of your dreams.

Don’t forget….we will also build you a complete, custom exhaust system, from cylinder head to tailpipe! Let’s get started today!

At National Transmission, your complete automotive care center in Alexandria, LA we install only quality replacement parts. Give us a call and let us help keep you safely and economically on the road. We serve Alexandria and the surrounding areas.

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