We are moving to Riverton Wyoming. The move is taking place now and with luck should conclude in late June. We are answering parts orders and taking appointments for machine work @ (303) 420-6218.
Your Diesel Deserves The Best.
Mountain High Performance (MtnHiPerf, MHP) is your "Go To" Diesel Performance Machine shop, able to help with any of your light duty performance or stock diesel engine needs. We offer MHP Performance Push Rods, Valve Springs, Oversize Stainless Steel valves, Custom Porting, Pressure Testing, Resurfacing operations, CNC Fire Ring Groove machining, "O" ring groove machining, Boring, Honing, Custom Sleeving, Connecting Rod resizing, Pin Bushing replacement and sizing, Crankshaft work, Balancing, and much more for your Cummins, Duramax, and Ford Powerstroke diesels. We also can supply most of the engine parts you might need, to allow us to be your one stop engine shop.
Family owned and operated, with over 75 total years of experience, we can inspect, assess, advise & repair or upgrade your engine. We also offer Cryogenic Processing Services to enhance the performance and durability of your diesel or gas engine components. Call us at 303-420-6218 anytime. We will speak to you directly Monday thru Friday, 8-5 Mountain Time Zone, or leave a message and we will call you back. You can also E-Mail us at MtnHiPerf@att.net and we will respond quickly. We are located in Arvada, Colorado, at 5293 Ward Road, Unit #3, 80002, but are in process moving to Riverton, Wyoming. Demand the best! Mountain High Performance.
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2025 is our 46th year of continuous operation under the same ownership.
It's official! We are moving!