Precision Crankshaft Service
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Precision Crankshaft Service, Inc. has been Jacksonville's automotive machine shop specialist for over four decades. Automotive, industrial, marine and agricultural engines rebuilt on-site by expert machinists with over 150 years combined experience. As your vehicle's power source, your engine is the single most important component inside your vehicle.

For this reason, the condition of your engine plays a major role in your vehicle's performance, longevity, mileage and overall value. For expert engine rebuilding and machine work, call 904-354-1359.
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Precision Crankshaft Service, Inc. has been in business since 1964 and has been family-owned and -operated since opening. With over 150 years of combined experience, no one in Jacksonville is better suited for rebuilding your automotive, marine, or light truck engine. Our skilled team of technicians performs a wide range of services on domestic and foreign automotive engines as well as marine, industrial, and agricultural engines.
Reviews (10)
Ricardo M.
Ricardo M.
Mar 05, 2021
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Beautiful work done to my Ka24de head!! Did the work super fast and friendly. It was a little bit more then what I was quoted for $20 would have got you 5 stars. Thank you for your work I will come back for more work.
Aaron Littlefoot
Aaron Littlefoot
Jan 30, 2021
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I can't say this is a 1 star business because the customer service was good and they worked with me on the details that I wanted. However, back when I had the work done, half of my rods were mounted backwards on the pistons, not a huge issue as I fixed it while I was building my engine. Second, when my block was machined and cleaned, threads weren't chased (I didn't specifically ask for it, but thought it was part of cleaning) and the oil galley plug was removed and never reinstalled, again, not a major problem. Issue number 3 that I just discovered while upgrading my heads, 7/8 of the valve seals
North Florida Mobile Detailing
North Florida Mobile Detailing
Oct 05, 2020
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Stand up character and old school ethics in the automotive industry for the most part and the most knowledgeable people who are involved in this type of work these days. Great experience for myself and highly recommended to anyone who wants to have a professional experience with your engine mechanics and your heads need cleaning up being replacing the gaskets. They are the best ones that I have found.
Sam Tedder
Sam Tedder
Oct 29, 2019
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I have been using Precision for about 8 years now. I have my own auto repair shop in Middleburg. I followed Ralph to here from Dover Cylinder Head when he was in the industrial loop in orange park. I have talked with Barry several times, and he seems like a nice guy, never met him, but i know Ralph has always done a great job for me for 19 years now. I am sending 06 Trailblazer SS Heads to them today for reconditioning. Thanks Barry and Ralph. Sam
Joe Kaz
Joe Kaz
Jul 07, 2019
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This shop and its staff are great. They remanufactured my 1937 Ford V8 block and crankshaft. I was pleased with their knowledge when it came to working on such an old and relatively uncommon engine. All work was done quickly and at a very good price.
Anthony Mattox
Anthony Mattox
Dec 09, 2018
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Top notched service. Had a head with a broken exhaust manifold bolt, took it to Precision. They drilled, tapped, and helacooled the bolt threads and had it back to me next day.
Found out that I had a resurfacing issue, sent it back to them and had it back in 24 hours. Highly recommended!
Cody Wallace
Cody Wallace
Dec 17, 2017
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I have been worned not to go here but it was the closest to my house. Seemed like a decent place when walking in, a bit out dated. They are in no hurry to get ur engine back to you so make sure u have a week or two of spare time after they quoted me 2-3 days and once getting it back expect below to bare minimum workmanship with no accountability for their mess ups. After a week and a half you would think they would have time to do it right but instead At the end of it i am on the way to a new shop and will not be returning. It certainly was a learning experience.....
Hunter D.
Hunter D.
Jul 05, 2017
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Berry and his shop has done outstanding machine work for me in the past and continues to do so in the present. Berry genuinely wants to help you and his prices are unbeatable. I will not go anywhere else besides here.
Jon A.
Jon A.
Sep 12, 2015
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Precision Crankshaft rebuilt a 1.9L DOHC Saturn engine for me in May 2013. I've waited to leave a review to see how the work held up. I'm happy to report that the engine has performed flawlessly with thousands of miles on the rebuild. I highly recommend this shop.
Joe Mason
Joe Mason
Jul 26, 2015
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Tubel’s Goodyear has used Barry and his crew at Precision Crankshaft for all of our cylinder head and machine work for several years and have had nothing but quality results every time. We do several head gasket replacement jobs each year and the crew at Precision Crankshaft offers quality and service we can count on to keep our customers on the GO. Keep up the outstanding quality and service!