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Lone Pine Machining LLC

"One In A Thousandths!"

About Us

Lone Pine Machining LLC is a trusted machine shop serving Platteville, WI, and the Tri-State area since 2021. We specialize in precision engine machine work, auto machining, and custom machining services for automotive enthusiasts, repair shops, and businesses. Our skilled team combines years of experience with advanced equipment to deliver accurate, reliable results on every project. From engine rebuilding and cylinder head work to precision automotive machining, we are committed to quality craftsmanship, efficiency, and customer satisfaction. At Lone Pine Machining LLC, we take pride in providing honest service, competitive pricing, and dependable machining solutions you can count on. When precision matters, trust our team to get the job done right.

Areas Served

What We Offer

Our Specialties include:

At Lone Pine Machining LLC, engine rebuilds are more than just a service—they’re a true specialty rooted in precision, patience, and pride. Every rebuild begins with a meticulous tear-down and inspection to understand exactly what an engine needs to perform at its best. From resurfacing components and grinding crankshafts to installing new parts and restoring factory-tight tolerances, each step is handled with expert craftsmanship and attention to detail. Whether it’s a tractor that’s powered a family farm for decades, a hardworking piece of heavy equipment, or a classic engine in need of revival, Lone Pine Machining treats every rebuild like a custom project. The result is an engine that runs stronger, lasts longer, and feels like it’s been given a brand-new life.

Our Services include:

Drop-Off & Pick-Up Services: At Lone Pine Machining LLC, convenience is part of the craft. Whether you’re running a busy farm, managing a fleet, or tackling a personal project, we make it easy to get the machining support you need. Customers are welcome to drop off equipment or engine components at our shop, or we can arrange dependable pick-up service when hauling large or heavy items isn’t practical. Our goal is simple—get your parts where they need to be so the job gets done without slowing you down.
Engine & Automotive Machining: Our shop offers full-service engine machining for automotive engines, small engines, and performance builds. From precision boring and honing to detailed surface work, we ensure every component meets exact factory or upgraded specs. Whether you’re restoring a classic, maintaining a daily driver, or optimizing an engine for better performance, we bring accuracy, experience, and craftsmanship to every job.
Tractor, Large Equipment & Heavy Equipment Engine Work: Lone Pine Machining LLC specializes in the engines that keep farms, construction sites, and industrial operations moving. We provide complete machining and repair solutions for tractors, large engines, and heavy equipment, including tear-down, inspection, machining, rebuilding, and reassembly. We’re equipped to handle oversized components and high-duty engines that require precision, strength, and reliability. If it works hard for a living, we know how to keep it running strong.
Engine Rebuilding & Modifications: When an engine needs a second life—or a serious upgrade—our rebuilding and modification services deliver. We perform complete engine overhauls, crankshaft grinding, component replacement, and custom modifications to improve power, efficiency, and longevity. Every build is handled with careful measurements, quality parts, and craftsmanship that ensures the finished product performs like it should. From stock restorations to performance-focused mods, we tailor every rebuild to your goals.
Crankshaft Grinding & Precision Component Work: A smooth-running engine starts with perfectly machined internals. Our crankshaft grinding and component machining services restore proper tolerances, eliminate wear, and extend the life of your engine. Whether it’s a small automotive crank or a large equipment shaft, we bring worn parts back to spec with accuracy and attention to detail.
Sandblasting Services: For parts that need a deep clean before machining, painting, or restoration, our sandblasting service removes rust, scale, coatings, grease, and years of buildup. We safely and effectively strip components down to clean metal, giving you the perfect starting surface for repairs, rebuilding, or refinishing.

Testimonials

On 9/2/2025 Charles had this to say:
Very fast service and fair pricing. Testimonial written by Charles on this site.

On 8/1/2025 Anonymous had this to say:
Great service Testimonial submitted anonymously directly to this site.

Contact Us

Lone Pine Machining LLC
2798 Co Rd B Platteville, WI 53818
Phone: (608) 331-7070
Email: lonepinemachining@gmail.com

Where To Find Us

Payment Types Accepted

Personal Checks

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 7:00 AM - 8:00 PM
Tuesday: 7:00 AM - 8:00 PM
Wednesday: 7:00 AM - 8:00 PM
Thursday: 7:00 AM - 8:00 PM
Friday: 7:00 AM - 8:00 PM
Saturday: 8:00 AM - 4:00 PM

News

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FAQ

What services does Lone Pine Machining LLC offer?

We specialize in engine machine work and also providing services in auto machining, we are known for our reliable, knowledgeable, and affordable solutions.

Do you handle custom projects?

Yes! We specialize in custom machining solutions tailored to your specifications. Contact us to discuss your project requirements.

Where are you located?

You can find us at 2798 Co Rd B Platteville, WI 53818.

How can I get a quote?

You can request a quote by filling out the form on our website or calling us directly at (608) 331-7070 with your project details.