Promar Precision Engine Rebuilders

Name: Promar Precision Engine Rebuilders
Address: 10 PEACH STREET, PATERSON, NJ, 07503, United States
Telephone: 9736841500
Rating: 5.0

Automotive in PATERSON NJ
Star Score
Average 5.0 / 5
Reviews & Ratings 139
VISIT WEBSITE
REVIEW Promar Precision Engine Rebuilders

Promar Precision Engine Rebuilders, nestled in the industrious city of Paterson, is a trusted name in engine restoration for over 31 years. Renowned for their meticulous craftsmanship, they deliver engines that run "like a sewing machine," boasting new parts and no shortcuts. Their engines come with a robust 3-year unlimited mileage warranty, reflecting their confidence in quality and durability. Customers rave about the seamless shipping, professional packaging, and exceptional customer service, highlighting the ease of core returns and the company's proactive support. Whether it's a classic 235 Chevy or a modern 6.2 LS motor, Promar's engines are praised for their performance and reliability, making them a top choice for both individual and commercial needs.

After looking for someone to rebuild an engine for a 1985 Caddy with only 16K miles, no luck. No one will touch the HT 4100. This engine has a very bad history of running hot and warping the heads because of the 2 types of metal making up the engine. Most people hatted this engine, a few love it. But here I have a 1985 Caddy mint condition, car show perfection, but no engine. So long story short after nearly 1 year or first trying to get it rebuilt (no one would touch it), I started looking for other ways to get this gem back on the road, maybe a new engine. I had talked to a lot of people online and believe me they talk a good game, but they have no professional business savvy. (Don't trust these people), old saying if it sounds too good to be true then it usually is. No positive reviews and no BBB rating l So, I kept looking and here again no luck, until I came across the web site for Promar Engine remanufactured Engines. Now this company had hundreds of reviews, there is a picture of their business on the web site with phone #'s and a perfect BBB. rating. They go into detail on the way they manufacture all engines with pictures. I could go on and on, so if anyone reads this you can believe everything that I posted about this company. This company probably isn't the cheapest, but when you want quality and to deal with honest people, then this is the company for you. Visit the web site for Promar. All of your questions will be answered. If anything changes then reviews will follow, but really, I don't see it going that way.

- Ronald Manning - Aug 31, 2025

Great job!!! Kevin was very helpful form start to finish..

- sumner dilworth - Aug 28, 2025

Great product. Received it quickly. Second engine that I have purchased from promar. Very pleased.

- jim sloan - Aug 26, 2025

Shipped on time , great delivery, motor look good assembled, runs great !!! Well worth the price !!!

- Joseph Pachera - Aug 26, 2025

I got a 5.3 dod delete from promar. Everything when great. Glad I found them
I have my truck back on the road and have no more worries. Great job promar

- Alexander Dimitry III - Aug 26, 2025

Excellent customer service. Super easy to order and work with. The engine I bought was delivered in a timely manner. I definitely recommend.

- Kenny Miller - Aug 11, 2025

Knowledgeable customer service Very dependable workmanship. This is my second time using there product.. highly recommend promar remanufactured engines.

- Mike B - Aug 09, 2025

Great experience with promar engine's! Got the new engine from them quicker than expected and looked perfect. After installing I ran through break in period and took it to tuner to double check everything was still on point. Runs great with 15lbs of boost and will deal with them in future if needed. I upgraded to forged crank and head studs for my needs

- Matt Griffith - Jul 20, 2025

Purchased a Non-AFM 5.3 to replace a failed engine in my Silverado. Shipping was fast and affordable. The engine runs great. Have around 1000 miles on it after having it tuned by Michigan Motorsports and HP Tuners. Customer service and communication was very good, they kept me informed on parts orders, build completion, and shipping info. Highly recommend!!! Thanks Promar!!!

- Rick Guardino - Jul 18, 2025

Great service and great product. I got my Gen2 Coyote long block from them a couple months ago, took my time building and installing, and just got my first start on it last night!

- Matt Bufford - Jun 20, 2025

Outstanding Engine Rebuild – Like New Performance!
Several months ago, I had Promar rebuild the engine for my 2012 Toyota Prius V, and I waited to write this review to truly assess the quality of their work. I can confidently say the results have exceeded my expectations. The rebuilt engine runs like brand new — smooth, quiet, and powerful. My fuel economy is back to 40 mpg, and I’ve had zero issues or strange noises since the rebuild.
I’ve already done the first oil change, and everything remains flawless. Promar’s team was responsive, meticulous, and clearly committed to top-notch service throughout the process. Choosing to rebuild the engine through Promar was significantly more cost-effective than buying a new vehicle, and I couldn’t be happier with that decision.
Highly recommend this company to anyone considering an engine rebuild!

- Paul Valente - May 26, 2025

This is my second engine from them customer service is outstanding truly ..You will not be disappointed..Went with a 426 stroker…..

- T H - May 23, 2025

I changed out the engine in my 2016 Ram pickup, it was a 5.7 litre Hemi with 261,000 miles for a Promar remanufactured long block and couldn't be happier, I've been commuting back and forth to work with it for 2 months now and hasn't given me any problems, Thanks Promar...

- Simon Cospel - May 21, 2025

Everything went as planned. The engine shipped quickly and well packaged. The reman engine was clean as can be. Paint marked for torque settings. We saved the packaging for the core return.
The new engine has a few hundred miles on it, and all is well. Old school Ford 7.3 IDI diesel.

- Gregory Murray - May 14, 2025

Everything was fine with the exception of the block threads for the headers. Several bolt holes were almost impossible to get a bolt to start. Long block arrived in a timely manner packaged very well. Was easy to set the core back in the crate and return.

- Randy Tipton - May 12, 2025

Excellent craftsmanship and shipping was very fast on delivery time

- Chad - Jan 30, 2025

I would like to thank Mark and his crew at Promar Engines for such a fine job rebuilding my 1938 Dodge flathead engine. Pat Z

- Patrick Zamorski - Jan 30, 2025

Excellent service. Great communication. ***** was excellent to work with

- Cecil S - Jan 14, 2025

Excellent, all threads needing repairs were done, engine completely clean. Fast turn around and shipping, engine shipping and packed super

- Edward Birkmanis - Jan 07, 2025

No issues what so ever, quick build time for a 6.2 with AFM delete. Great job, I highly recommend.

- Matthew Carroll - Jan 06, 2025

Promar was very professional and the engine that I purchased has been great. Highly recommend this business.

- Dale Wells - Dec 06, 2024

Great service, quick delivery no issues

- Kris Krone - Dec 06, 2024

i purchased a long block 5.4 ford its been 3,000 so far its running good

- Mike Gidi - Nov 24, 2024

I ordered the supercharger ready 4.6 for a 2001 Saleen with a Kenne bell charger. The engine is handling the boost and no issues whatsoever. I will definitely give Promar my business in the future.

- Clint Street - Nov 24, 2024

I could not.
Be happier, the motor started up And had been running smooth ever since. I was happy that the motor was all painted cadillac blue. No oil leaks.. Thank.
You for a great job.Dan

- Dan - Nov 22, 2024

We purchased a remanufactured 2020 L83 5.3 AFM delete. Communication with customer service was superb. The instructions were clear enough, we documented everything they required replacing and then went beyond that just due to the mileage on the vehicle. Used HP Tuners to delete the AFM in the ECM. Just performed the required 500 mile oil change and its running great. Pictures show: 1) mated to the new 6L80e, 2) installed with the new water pump, vacuum pump, belts, tensioner, thermostat assy, new engine/transmission wiring harness, oil lines & trans lines. 3) close to done with new air filter.

- Rick Wurm - Nov 20, 2024

Great company great products I get all my customers engines through promar . GET IT RIGHT AUTOMOTIVE appreciates you guys

- martell jones - Nov 20, 2024

This is the 3rd rebuilt engine (for three different Jeeps) we have purchased from them in the past 9 years. They have excellent quality and great customer service. We had two shipped to our home in Arizona, and the last one was shipped to a shop for us. The experience was smooth, and they communicated quickly. Our mechanic was impressed with their quality as well. While I hope not to need another engine anytime soon, I would buy from them again!

- S N - Nov 14, 2024

These guys are the ultimate professionals. They were on time with the delivery of my remanufactured 7.3 IDI. The engine has been on for two months now and it runs great, has awesome e oil pressure and power and does not use any oil. As an FYI. The engine is in an 18,000 pound roll back.

- Tony Esposito - Jul 10, 2024

Excellent job. To my specifications. Very good to work with.

- greg reisch - Jul 02, 2024

Great company! Bought an engine from them and love it!

- Nicholas Trousdale - May 01, 2024

As a 46 year GM dealership technician, I was a little hesitant about ordering a rebuilt northstar engine from anyone.
I'm truly impressed by the quality of their work, from the shipping process, including a well made crate, to the finished product running smoothly and quietly, knowing first hand the quirks of this engine for head gaskets and bolt thread issues. They did a great job, very pleased with their entire process

- Perry Pike - Mar 24, 2024

Promar was very helpful in answering any questions that I had concerning the remanufactured engine that I purchased from them. Can't wait for the install to be finished.

- Jeremiah - Mar 08, 2024

The motor seems to run great. Interaction with sales was ok but the engine was delivered with gaskets and some sheet metal I was not expecting so I had to return some of the parts I had purchased.
My only call to tech support was quickly answered.
Over all a great experience. just reached 1000 miles!

- david scardina - Mar 06, 2024

Great customer service. We received the engine we ordered in the time frame given. We had a bit of a delay getting the core back, but they worked with us. Overall, an excellent experience. Will definitely use them again!

- Kelly Powers - Oct 18, 2023

I received my 4.6 Northstar Engine in July of 2023. Unfortunately the installation into my 96 Eldorado was delayed due to illness. When I fully recovered the installation went well but I had to repair some electrical wiring gremlins that took some time to diagnose and repair.
I must say I was very happy to see the quality of the work on the Promar rebuilt Northstar Engine and the care taken to insure it arrived in beautiful condition . It is now running and purring quietly under the hood of my Eldorado. Thanks again for your patience and excellent product. A special tip of the hat to the fine technicians who rebuilt this engine!

- William Wilson - Sep 08, 2023

Very satisfied with the support and clear answers that was given to me. I will always recommend promar engines.

- Jose Reyna - Sep 05, 2023

5.4 3v. Ordered this engine for my 04 F150 Custom Truck. Had it Comp Cammed & Tuned straight out the box! So far so good. Engine thumps like none other!! Just completed my 500 mile oil change. No issues at this point. Breaking her in slowly. Engine is very responsive and performing well. Promar is a great company to do business with. They really worked with me on my core so that I didn't lose my warranty. Both Robin and Kevin assisted in the process. Great customer service! Communication is key. Promar is a name you can trust!!!

- Christopher Bradley - Sep 02, 2023

they were very helpful in remanufacturing my 5.0L marine engine. It came back in like new condition. It was done within the estimated time told.

- michael k - Aug 22, 2023

So far so good, all but the tacking on of added ship cost?

- Jessica Hazzard - Aug 15, 2023

Very courteous and quick to respond to questions and concerns. I would highly recommend their services. They stand strongly behind their products.

- Mark Pease - Aug 08, 2023

Very personable and informative. Top notch.

- cornell bell - May 27, 2023

- Joe Capolupo - May 03, 2023

I replaced the engine in my 1999 Ford F 150 lightning. The price was very good. My engine installer ran into a few problems but he worked it out with Promar. Car runs like new. Less than 1000 miles now so will get an oil change soon. Just a word of caution when installing a shortblock, you may be reusing your older parts on the installation and these may fail. Happened to me with the starter motor, but that was my own fault. Recommend you to use their services whole heartedly.

- Gene Lee - May 02, 2023

Delivery and core exchange went very smoothly and customer support was excellent.

- Richard Locarni - May 01, 2023

I can't say enough good things about these guys. They handled our engine concern quickly and efficiently. They kept me informed throughout every step of the process.
Our job was completed on time. The engine came back to us wrapped up in plastic and even included pictures of the various stages of progress.
I would recommend Promar to anyone. 5 stars!

Michael Ceccon
Parts and Service Director
Trinity Cadillac

- Michael Ceccon - Apr 27, 2023

Quality was outstanding. Motor
Fired right up and runs great. Thank you.

- Lu Murray - Apr 25, 2023

I have not yet begun to re assemble
My engine and will do so starting 5/1
Please contact me 6/1 It will be completed and in the Road
Thanks
Doug Herrin

- Doug Herrin - Apr 25, 2023

Great place to deal with Fair prices and quality rebuild

- Cris Stellenwerf - Mar 02, 2023

After researching multiple vendors had Promar ship a long block 4 liter, 6 to Az for my 2000 Jeep TJ. Motor arrived ahead of schedule and after first 750 miles the motor purrs. Very pleased at this point. Shop that did the work impressed also...Thank You

- Terry Sims - Feb 19, 2023

Frequently Asked Questions

FAQ's from customer experiences

What types of engines does Promar Precision Engine Rebuilders work on?

Promar rebuilds and remanufactures a wide range of engines including gasoline and diesel engines for various vehicle makes and models, from classic cars to modern trucks and performance engines.

How does Promar handle shipping and core returns?

Engines are shipped promptly and well packaged, often arriving sooner than expected. Core returns are facilitated with clear instructions and are generally straightforward to complete within the specified time frame.

What kind of customer support can I expect during the engine rebuild process?

Promar provides knowledgeable and responsive customer service, keeping customers informed about parts orders, build progress, and shipping details, and is available to answer questions before and after purchase.

Promar Precision Engine Rebuilders | 10 PEACH STREET, PATERSON NJ 07503, United States