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RPM Machine, Inc. is located in Sturgis S.D. off of I-90 at Exit 30.  Go North approx 1/4 mile and take a right on Main St.  We are right next door to CarQuest.


RPM Machine, Inc. has been in business for SINCE 1986 and has grown to be one of the leading providers of remanufactured engines and machining services. We provide a full 3 year 36,000 mile warranty on the long block assembled gasoline engines and 12 month 12,000 miles on all RPM long block assembled diesel motors.


Call or come in today to get your project started 605-347-4871.  

Opening Hours:

MONDAY - FRIDAY: 8:00 AM - 5:00 PM



2210 W. Lazelle St., Suite A

Sturgis, SD  57785

Quality and Professional Service


RPM Machine, Inc. stands by the workmanship and quality of the parts put into each and every rebuild by offering a 3 year or 36,000 mile warranty on gasoline engines and a 12 month 12,000 mile warranty on all diesel engines assembled by RPM Machine, Inc. We make sure that everything that goes out of the shop and into your engine bay is done right the first time. 


We strive to find the highest quality parts for your engine, so it is very important to let us know how you will be driving the vehicle and what the demands will be for that motor. 


Do you have a passion for doing the assembly yourself and want us to only do the machine work?  We are happy to accomodate you although we can not offer the above mentioned warranties. Our Master Kit pricing is available at your request along with upgraded performance parts at your choosing. 


Don't get an overpriced junk yard motor that you don't know the service history on. Go ahead and rebuild your motor and get it done right by RPM Machine, Inc.


Call us today for an estimate.

Our Services



​- Cranks

- Engine Blocks


- Cylinder Head Refurbishing

- Sonic Wash

- Glass Beading

- Engine Assembly

- Hot Tank

- Engine Balancing

- Milling Flywheels and Brake Rotors

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