23807 West Andrew Rd. Unit A Plainfield, IL 60585

Now Celebrating 25 Years in Business!
Thank You For Your Support!




"When it comes to an engine rebuilder I wanted someone I could trust and was local. PER fit the bill. They did a great job on the rebuild and worked with me so that my son and I could finish the assembly as a family project. It assembled perfectly, all the clearances were in spec and it started up just fine. I wanted to break the engine in on the Dyno and PER again, rose to the occasion. I had some carburetor issues and PER went well beyond the extra mile to get the engine run in, and dyno'd.. Great job all around, if you want a business anyone can build an engine out, but if you want a partnership then PER
is the way to go!!"

Tom Wisnionski


"Rebuilt my classic cars engine and it drives great! Friendly staff and they know engines inside and out. Thank you!"

Ben Nemec



Precision Engine Rebuilders was opened in March, 1993 by owner Randy Crowley and wife, Lisa. We started out supporting the local parts stores, service stations and car dealerships. Thanks to the support of our customers, we have grown to where we are today.

2013 was a major milestone for Precision Engine Rebuilders. We celebrated 20 years in business. Our facility houses a CNC center for blocks, diamond honing for cylinders, computerized crank balancing, engine assembly room and an engine dyno room. For an inside view of our shop, take our virtual shop tour. For more information, please contact us at 815-254-2333. We look forward to working with you.

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