Our full-service machine shop in Williston, Vermont, is where domestic horsepower gets reborn, rebuilt, and pushed beyond factory limits. Whether your goal is resurrecting a classic V8 or squeezing every last pony out of a modern performance block, we’ve got the tools, knowledge, and relentless drive to make it happen.
When your engine’s worn, damaged, or just plain tired, Green Mountain Gear-Heads tackles every detail with surgical precision. We start with deep cleaning and inspection to reveal hidden flaws, then handle everything from hot tanking and vapor honing to cylinder honing, block truing, and multi-angle valve jobs. Cracked blocks, seized bolts, warped heads—we’ve seen it all, and we bring engines back from the brink with craftsmanship and engineering know-how. Our engine repair services ensure your block, heads, and internals are brought back to factory specs—or better—so you can drive with confidence and power once again.
If stock specs don’t cut it, our performance machining services take your engine to the next level. We offer competition honing with torque plates for perfect ring seal, port matching and valve jobs for optimal airflow, and custom machining for rotating assemblies that can handle big horsepower and high RPMs without flinching. Whether you’re building a street bruiser, a drag strip killer, or a track-day terror, we approach every modification with precision engineering and real-world performance insight. At Green Mountain Gear-Heads, we don’t just machine parts—we build engines that make noise, make power, and leave rubber on the pavement.
8 AM - 5 PM
Monday - Friday
85 Shunpike Rd, Williston, VT 05495