Whether you're building a custom marine masterpiece, restoring a classic, or pushing the limits of performance with an upgrade, we exist to deliver engines that ignite passion, fuel performance, and inspire confidence.
Each engine is hand-crafted by our top racing experts with cutting-edge supplies, and we have an established commitment to crafting top quality, hand-honed, hand-tuned engines.
Every service we offer flows through the same shop, the same dyno cell, and the same hands. One standard. No exceptions.
Marine engine rebuild, upgrade, or fully customize:
Building for race classes within SVRA, VSCDA, VARA, and Trans-Am, SCCA and NASA:
At Sterling Engines, we are experts in crafting, rebuilding, and upgrading high-performance engines for both marine and auto applications.
Not Just High Performance. We Do It All.
Get startedSterling Engines is known for building champions, but we also service everyday engines with the same level of care and precision.
Whether it's a stock refresh or a full-blown custom job, we treat every engine like it's built to win.
Mercury 525, Volvo, Crusader: refined for everyday cruising and reliability.
Porsche, Camaro, Corvette, Ferrari, and more.
Chris-Craft, Riva, Donzi, Hacker-Craft and more.
Top-end refreshes through full performance upgrades.
Naturally aspirated, supercharged, or turbocharged.
Sterling Engines is a full-service shop covering custom-built marine, autosport, and personal engines; marine and auto racing rebuilds; dyno testing and tuning; and machining — cylinder head resurfacing, engine balancing, block boring and honing, and crankshaft polishing. We also handle custom-tuned diagnostics & analysis, performance rebuilds, track support packages, expert consultations, dry sump systems service or rebuilds, and Mega Marine sales and rentals. Every service flows through the same shop, the same dyno cell, and the same hands — one standard, no exceptions.
Yes — we are experts in crafting, rebuilding, and upgrading high-performance engines for both marine and auto applications. On the marine side we build and rebuild Mercury, Volvo, Crusader and more; on the auto side we build for race classes within SVRA, USCCA, SCCA, VARA, and NASA, working on big and small block Chevy and LS7, large and small block Ford including the 460, vintage cast-iron and Ferrari, and Mopar big block and Hemi. Not just high performance — we do it all.
Yes. Our dyno testing and tuning covers engine dynos and calibration for naturally aspirated, supercharged, or turbocharged setups. We dial in the calibration in our own dyno cell so the engine is verified before it leaves Milford. The number on the dyno sheet is the number you take to the track or the water — verified numbers, not promises.
You don't have to be a racer. Sterling Engines is known for building champions, but we service everyday engines with the same level of care and precision — from mild to wild. That includes cabin cruisers like the Mercury 525, Volvo, and Crusader, classic boats such as Chris-Craft, Riva, Donzi, and Hacker-Craft, and custom auto work on Porsche, Camaro, Corvette, and Ferrari. Whether it's a stock refresh or a full-blown custom job, we treat every engine like it's built to win.
Yes — built, tested, delivered. Every engine is broken in and dyno-verified before it leaves Milford. We test in our own dyno cell so you get a real, measured number rather than an estimate. The number on the dyno sheet is the number you take to the track or the water.
Start with a free consultation. Every build is individually quoted, so call us at (248) 684-5040, email info@sterlingengines.com, or reach out through our contact page and we'll talk through your application, goals, and timeline. We're racers building for racers, and we're happy to advise whether you're after a stock refresh or a fully custom build.
