High-Performance Engine Building & Machining in Chino Valley, AZ
From racing engines to hot rods and classic car rebuilds — Mountain Valley Performance delivers precision craftsmanship and proven power.
From Mild to Wild
At Mountain Valley Performance, engine machining isn’t just a trade — it’s a passion forged over a lifetime of racing. Owner Bobby Marcum and his team bring decades of hands-on experience to every engine they touch. Whether you’re chasing horsepower on the track or reliability for your weekend cruiser, our precision machining and custom engine builds are made to perform.
Send us your engine — we’ll send it back better than brand new.
We serve
gear heads, hobbyists, and local mechanics throughout the Southwest with expert machining and rebuilds. Every job is backed by our quality guarantee and a deep respect for the craft. When Mountain Valley Performance works on your engine, you can trust it’s built to win.
SERVICES
All Things Engine
Expert Engine Machining & Custom Builds
Mountain Valley Performance offers precision engine machining, rebuilds, and performance tuning for everything from race cars to classic restorations. Whether you’re chasing more horsepower, bringing a vintage motor back to life, or looking for a trusted local machine shop, our team delivers craftsmanship you can count on.
What We Offer:
- Complete engine builds and rebuilds
- Cylinder head work and valve jobs
- Boring, honing, decking, and balancing
- Blueprinting and performance tuning
- Classic and vintage engine restoration
- Race engine machining and assembly
Every project is done in-house and backed by decades of hands-on experience — because your engine deserves more than just a rebuild; it deserves to be reborn.
FAQ
How long does it take to get my engine back?
Build/rebuild time varies greatly based on many factors such as the condition of the engine, work to be performed and the desired outcome. The best way to get an accurate timeframe is to give us a call and tell us what you need.
Where are you located?
We are located at 448 AZ-89, Chino Valley, AZ 86323. We are right across the street from ACE Hardware.
Contact Us
Contact Us
Phone: 928-632-5470
Alt Phone: 928-515-1964
Address: 1448 S State Route 89 Chino Valley, AZ 86323
Hours: Monday - Friday 7am - 4pm
