WE BUILD LS MARINE HORSEPOWER!

Custom Engine Builds & Installation, PERFORMANCE UPGRADES, TUNING, & CUSTOM FABRICATION ALL UNDER ONE ROOF.

⚙️ Power Unleashed! Experience the thrill of 1000HP, 1200HP, or even 1500HP in your boat. MasterTech's Custom Inboard Engines deliver unmatched power and performance. Let us turn your horsepower dreams into a reality. #UnleashThePower #HighPerformance

LS Powerboat Custom Engines & Installation: Unleash the Power of LS Technology

As pioneers in LS engine technology and application development for over two decades, we are thrilled to venture from land to sea with LS Powerboat Custom Engine Builds & Installation Swaps. Our mission is clear: to Research, Design & Develop the most sophisticated and powerful marine engines for professional racers and boat enthusiasts. Say goodbye to outdated engines like the 350 SBC and 454 BBC, and embrace the cutting-edge LS technology that defines the future of marine engines.

Crafting Your Custom LS Powerboat Engine Build: How Much Does It Cost?

Each project is unique. There is no one-size-fits-all solution when it comes to LS Powerboat Engines. With our extensive experience in LS engine performance, we handcraft engines and provide custom recommendations based on your specific requirements.


Your Inboard Engine, Your Way

Customization at Its Finest:

Your goals, your horsepower, your choice! Select from the latest LS Engine platforms or the popular Small Block & Big Block Engines. Customize with stock or performance parts, blowers, headers, turbo, Whipple superchargers, nitrous, and even choose your own paint.

Inboard Engine Rebuilds & Performance Modifications

Power-Up Your Existing Engine:

Need more power? We rebuild to your custom specs, providing performance heads, bigger cams, headers, turbos, Whipple superchargers, and more.

inboard Engine Repair

Swift and Reliable Solutions:

Our skilled technicians are here to handle any engine issues you may encounter. Trust us to diagnose and fix problems promptly, so you can get back on the water with confidence.

Don't settle for ordinary. Choose the extraordinary with MasterTech's Custom Inboard Engines.

⚓️ MasterTech - Where Engine Dreams Become Reality ⚓️


Marine LS Engines with Drive by Cable Throttle
Forged Internals - 2 year warranty -
All American Parts- Marine Grade - Turn key ready

Our high-performance marine engine blocks and deluxe engine block kits provide a solid foundation for your marine engine. With precision CNC machining, we guarantee optimal performance. In addition to engine blocks, we offer marine long-blocks, short-blocks, balanced rotating assemblies, custom cylinder heads, and all other essential marine engine parts for reliability and high-performance projects. Our dedication to LS technology is evident through continuous building, dyno testing, competing, and tuning, resulting in winning and reliable combinations.

Embark on Your LS Powerboat Journey

Contact us today to discuss your Custom LS Powerboat Engine Build & Installation. Let LS Powerboat take your boating experience to unprecedented levels of speed, power, and exhilaration. It's time to rev up your engines and embrace the extraordinary.

Custom Quote Questions:

To embark on a journey filled with unrivaled horsepower and performance, let's address some pivotal questions that will fuel your path to triumph. Picture yourself leaving competitors in your wake as you experience the adrenaline rush of the LS platform. Here are the key factors to consider:

  1. Select the Perfect Drive Type: Choose from Jet, Bravo, Alpha, #6 Sterndrive, V-Drive, or wakeboard configurations.

  2. Unleash Explosive Power: Determine the accessories your current engine possesses and the ones your new LS engine will require. Choose between custom fabrication of accessories mounting and drive or opting for a complete kit.

  3. Embrace the Cutting-Edge: Decide between an aluminum or iron block and seize the advantage of closed cooling for optimum performance.

  4. Grip the Water with Confidence: Identify the motor mounts your current engine employs for a seamless adaptation to the LS platform.

  5. Conquer the Waves with Finesse: Equip your Alpha Outdrive with a modern Bravo bellhousing, LS Flywheel, and coupler for smooth sailing.

  6. Unleash the Beast Within: Determine if your LS engine has a long or short crankshaft snout to make informed decisions about starters, flywheels, PTO, and more.

  7. Roar Past the Competition: Choose between lightweight agility with aluminum exhaust or unmatched durability with stainless steel headers. Let your presence be felt on the racecourse.

  8. Dominate the Race with Precision: Opt for a carburetor or EFI setup, and if EFI, decide on the number of O2 sensors needed to optimize your performance.

Prepare for an Unparalleled Boating Experience

With our Custom LS Powerboat Engine Builds & Installation, you'll experience the extraordinary power that only the LS platform can offer. Rev up your engines, embrace the extraordinary, and let LS Powerboat propel you to new heights of exhilaration.

The LS Powerboat Engine Swap awaits you. Contact us today to get your custom quote.