Detroit Rebuild Specialist
“Casey and his crew are very good at diagnosing and fixing your issue.”
Best Engine Repair & Rebuild near McDonough, GA
3 of these technicians are based in McDonough; the others serve McDonough from towns including Jackson (16 mi), Stockbridge (8 mi) and Forest Park (18 mi).
5 open weekends · 18 rated 4.5+ · 1 shows a license
Data verified October 18, 2026
H3 Automotive Repair
“Great staff, and my guy Dwayne is cool 😎 rest of team are just as amazing.”
Knuts and Bolts Auto LLC
Barber Auto Repair & Air Conditioning
“My wife and I have used Barber Auto Repair and Air Conditioning for years and they are by far the best in the business.”
Crown's Corner Mechanics
“I drop off my vehicle to get checked and Desiree,was very helpful on helping me with my problems with my car.”
Ameri Imports LLC
“My family and i are on vacation and our van started misfiring, the mechanics here are very nice and got us in immediately to get us back on the road.”
Listed for drivers in and around McDonough, GA, these 24 shops repair, rebuild and replace engines. What each one says about machine work, warranty terms and the engines it supplies comes from its own website; ratings and quotes come from public reviews.
Area overview: McDonough, GA
The 24 technicians on this page are rated from 4.0 to 5.0 across 1,844 reviews; 12 have 50 or more reviews and 18 are rated 4.5 or higher. When customers rate these technicians on specific qualities, they most often praise professionalism (93%), quality (83%) and value (73%). 5 are open on Saturdays and 2 on Sundays. 1 shows a license on its website; 1 lists staff certifications (ASE) and 4 have a BBB rating of A or A+. 9 have ten or more years of experience, the longest 48 years. 1 offers financing; 5 give free estimates; 5 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for 17 of the technicians on this page; 13 publish a contact page; 6 list a public email and 1 takes bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Why do some listings show another city?
3 of the 24 shops are in McDonough itself and the rest come from other towns within 20 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
X-Pert Auto Care
“It's great service and great prices and finished my car in an excellent time”
Cali Auto
“Scott and Megan welcome you like your part of the family, both take a personal interest in your Porsche and explain in great detail any and all questions,”
One Stop Car Care Center
“Greatly appreciate them doing my oil change and in dealing with Synchrony.”
TLS Diesel Repair Services
“The guys here are very knowledgeable, and honest when it comes to working on diesel engines, they taught me some new things about my engine that I didn't know.”
Clayton Auto Service
“I hope I don't have a reason to go back here but if I do, I know I will receive top notch service.”
Jr's Auto Repair Castrol Express Lube
“They give you the best service at a reasonable price and they know their stuff.”
Turbo Diesel & Electric Systems an M&D Company
“Chip was Johnny on the spot he knew what I needed all the staff was helpful with any questions that I had”
Jackson Diesel LLC
“They worked on my truck a while back when the egr cooler went out and they did amazing work still no issues with my vehicle Years later.”
H.a.t. Mobile Diesel Repair
“The owner drove me home once he found out I had to leave my truck overnight.”
1 Mobile Mechanic
“Has worked on several cars for me and people I know and have had zero issues!”
J Man Auto Mobile Mechanic
“I called him and he came to fix my car 2 hours later.”
R & R Diesel Repair
“Robert was professional from beginning to end.”
Service Garage
“Jeremy did an impressive job doing an engine swap and many upgrades on the 8.”
Mid State Diesel
“These people know their stuff, and taking shortcuts is not an option for them.”
Reasonable Automotive Service
“We are beyond grateful for their help and working with our budget we will definitely be using them again for any further car problems.”
Southern Diesel Enterprises
“Easily diagnosed the problems with my truck and got it repaired back up quickly.”
J Auto Service
“Oh and he works in everything, imports, American, check engine lights, A/C, breaks, transmission.”
Cgrmotorwerxs
“As a former veteran myself, I highly recommend this fine mechanic to the highest degree.”
Why these companies made our list
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