Race Proven Motorsports
“Race Proven Motorsports (RPM) is far more better than the traditional shops, they know what is right for your vehicle.”
Best Engine Repair & Rebuild in New Castle, DE
15 technicians listed · 5 in New Castle · 4 open weekends · all 15 rated 4.5+
Data verified October 23, 2026
Alderman Automotive Machine
“It's getting harder and harder to find automotive machine shops, especially one this good!”
Dj's Automotive
“I dropped my Suburban off on Monday before Thanksgiving and Dave called the day after Thanksgiving and said it was done.”
Tgo's Auto Care
“Definitely knows his stuff- very trustworthy and as a woman it's hard to find an honest mechanic...”
J&J Fleet Services
“No matter the size of your fleet, these guys get it done FAST!”
JV Auto Service
“I grew up with my parents going here and now it's the only place I trust to get repairs done on my car.”
Listed for drivers in and around New Castle, DE, these 15 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: New Castle, DE
5 of the 15 technicians we list are based in New Castle; the other 10 serve New Castle from towns including Wilmington (5 mi), Newark (10 mi) and Claymont (11 mi). The technicians on this page are rated from 4.5 to 4.9 across 2,637 reviews; 11 have 50 or more reviews. The topics that come up most in reviews of the technicians on this page are "price", "diagnosis" and "fair". 4 are open on Saturdays. 3 list staff certifications (ASE) and 8 have a BBB rating of A or A+. Domain records put 11 websites of the technicians on this page at ten or more years old; the oldest dates from 2003. 1 offers emergency or roadside call-outs; 1 offers financing; 3 are family- or locally-owned and 4 list coupons or special offers. We have a website on file for 13 of the technicians on this page; 10 publish a contact page; 8 list a public email and 4 take 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?
5 of the 15 shops are in New Castle itself and the rest come from other towns within 15 mi. An engine job means leaving the car for days, so the drive happens once at each end rather than every morning.
Everest Auto Repair
“Everest looks for ways to trim a customer's bill rather than pad it.”
Certified Automotive
“I hope I don't have to go back anytime soon but if I do, I won't be upset about who will be taking care of my Jeep 👌”
J-Tune Performance
“They've always been quick to respond emails, but they've implemented a new communications/scheduling system that made it even better.”
Durkee Automotive Inc
“Doug was friendly and kept us in the loop of what was happening with the car.”
Stokes Garage (Not Stokes Towing)
“Not many skilled, hardworking, and most important honest automotive technicians out there nowadays that's willing to go the extra mile to get your vehicle back on the road.”
Accurate Auto Service
“They were also extremely honest about the work they were doing and called me before moving forward with any additional charges besides what was absolutely necessary.”
Bobbitt Boys Auto Repair & Towing
“Not just because they are phenomenal mechanics, but because they are up front, honest, and fair.”
D & J's Auto Service
“Depending on your vehicle needs they will repair your car with same day service.”
Bargain Tire & Service
“The staff is amazing, they are quick, knowledgeable and the prices aren't outrageous.”
Why these companies made our list
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