Muscle Marine is a leader in high performance marine engines, offshore racing engines, and custom performance boat engines. Known for building extreme horsepower marine powerplants, Muscle Marine serves offshore racing teams, performance boat owners, and high‑speed marine enthusiasts across the United States and internationally.

Our engines are designed for one purpose: maximum performance on the water. Every Muscle Marine engine is built using precision machining, race-proven components, and engineering techniques developed through years of offshore racing experience.

 Muscle Marine specializes in custom marine engines capable of delivering extreme horsepower, rapid throttle response, and long‑term durability in demanding marine environments. Our engines are built to perform under sustained high RPM and heavy load conditions common in offshore powerboat racing and high‑performance boating.