BlackLine Haver Motorsports — precision-engineered powertrains for racing, marine, and beyond. Where engineering meets obsession.
Every BlackLine engine is hand-assembled, dyno-tested, and engineered for one thing — uncompromising performance.
BlackLine Haver Motorsports was born from a single conviction: factory engines leave performance on the table. Every component we build is designed to extract maximum output from every drop of fuel.
From drag strips to open water, our engines are trusted by teams who demand absolute reliability at peak output. No shortcuts. No compromises. Just power.
Purpose-built marine powertrains that deliver relentless thrust in the harshest conditions. Salt-tested. Race-proven.
Our marine division engineers high-output inboard and outboard powerplants for competitive offshore racing, high-performance pleasure craft, and military-grade applications. Every unit is sealed, salt-proofed, and built for sustained wide-open throttle operation.
Whether you're chasing a trophy on the strip or dominating offshore, we build the power to get you there.