The team at this machine shop rock! Ive been going to them for about 15 years and have never once been disappointed in the service! Just had some cylinder heads in for service and was blown away by how quickly them got them turned around! Price was great as always too. Jeff is a legend, the man knows his stuff. Keep doing the great work team!

These guys are absolutely awesome. I took some rods and pistons in that needed press fit pins installed and they estimated just a day or two because they like to get the smaller side projects out sooner. They called me back not 2 hours later saying they were done. The rods and pistons look great and helped out a lot! Will be coming back to their shop anytime I need stuff done!

Great guys, went out of there way too get me back on the road.

I used them to bore and fit new pistons in my 2.9 Ranger block also for cleaning all the misc parts involved. They helped me source parts also. Great work engine runs awesome with excellent oil pressure. We also started using them at the Dealership i work at. 10/10

I have gone here for 20 years. They really know their stuff.

Pretty quick turn with the S2000 block and head. No issues

These guys are awesome. I’m south of Denver (about 2 hours from the shop) and they made the trip more than worth it.Very fair pricing, and honest.The guys walked me through options for this new head and went an extra mile to make it perfect.I dropped the head off, dirty, just after disassembly. It needed new valves, seats, guides, and skims on the surfaces. They not only did that, but also sandblasted the whole head leaving it looking perfectly brand new, and went back over all the crucial spots (coolant ports, cam seats, etc..)Will most definitely be bringing the rest here from now on!!

My 2012 Tiffin Motorhome needed to have the heads and exhaust manifold milled and broken studs removed. These guys did a fabulous job and out-performed both their estimates on cost and time. ROCK STAR SERVICE, ROCK STAR PRICING, ROCK STAR QUALITY! Thank you SOOO much!

These guys were awesome! Had my block sleeved, decked and honed. They were honest and transparent from the start, got the work done quickly, and even told me to call with questions I have when putting it back together. They were overall friendly, honest, and fair Ill definitely be going back.

Great local Mom & Pop operation. Ive used them multiple times, and they do really good work. Reliable, fast, precise, and very fairly priced. The machinist himself will come over to talk to you and answer questions. I wont go anywhere else.

Jeff and Chad treated me with utmost respect and integrity. I had a home built engine that I needed broke in and dyno/tuned. I was honest with my concerns and they addressed all of them. Motor ran like a dream and put up numbers better than I expected. I will definitely be back for the next build from machine work to the build. The staff up front were also friendly, honest and very helpful! Thanks guys!!

Great group of folks with a TON of experience.Got a no prep street car you need to make tons of power? This is the place to go!Got a endurance drag car for the likes of Rocky Mountain Race Week or Drag Week? This is the place to go.Want to make INSANE amounts of power that can live on the street? This is the place to go.Friendly, very knowledgable, and really went out of their way to help me out with my car. I will be bringing all of my engines to here in the future.

Ive had them machine three engines for me. Two of them they long blocked for me. Engines have been running approximately two years. No problems what so everI highly recommend use of this machine shop, great people to work with!!

Jeff and Tom have been around through thick and thin. Mostly machine work now which is more manageable because of the work force available. They really saved my butt on a 460 motor. As they have in the past.

Awesome guys, helped me on a bearing press. Stayed after closing for me, to do control arm so could compete car over weekend.

These guys are great! I was referred to US Automotive by another local performance shop in town. I went in looking for a second opinion on diagnosing a racing engine block failure. They were very attentive to my needs; I had to be very certain of fine measurements in determining the problem. They helped diagnose the issue with the design of the engine block as a courtesy. I asked many questions and they were patient and supported by need to I learn at my own pace. Trust is rare in this business and Tom and Jeff earned my trust. Thanks guys!! Highly recommended.

From one small business owner to another Tom and I have both done business with each other. He has always had jobs completed on time when Ive asked and never an issue. Not many machine shops left these days along with the people and knowledge to stand behind them. I recommend Tom and Jeff for any type of machine work needed!

Highly recommend

Great owners. Showed up 5 minutes before they were closing for holiday vacation and they stayed and extra hour to accommodate my needs. Would highly recommended to others, family owned business and treated me great.

Great shop. quality work for a fair price, and they got my parts back to me fast. I will gladly use them for all my future engine work

Dropped off a fly wheel for my dump truck. Just made it back home and they called me to tell me it was done. Fast service and friendly people. Quality work as well. I will be back for sure.

I have had a lot of cars repaired in my life and dealt with many automotive repair shops and I can say that the crew at U.S Automotive and Machine are by far the absolute best Repair Shop I have ever dealt with. I have 2 vehicles that have been worked on there and I will always bring my Vehicle Repairs to Tom & Jeff. They have treated me like family and are up front with me about all my repairs. I even have found myself sitting there for hours and talking with the crew because of how they do business, they are the absolute best. If you find yourself if need of repairs or even complete rebuilds I would not hesitate to to take my vehicle to them whether it be your daily driver or hot rod, the crew at U.S Automotive and Machine does it all. Take your car to the Right Place the first time.

I love these guys, Ive taken my car in for different things, and no matter what it is they always have the best price, awasome quick service, and I really like that they talk you through whats going on, and they show you. I wont take my vehicles anywhere else! These guys know their stuff, and do it well! Thank you us automotive you guys are the best!!! : )

Cool how they can delete poor posts. People do not give them your money. There is better out there. People do your homework.

I had my motor balanced and my block cleaned and cam bearings put in which i brought i showed up to get my block and that charge me $20 for cam bearings and in paid 30 for the ones that i bought!!!!! so they took it off my bill for $20 so i still had to pay the $10 for the bearings i bought they also cut my piston rings they said anyways so when i got the block all the Rings were in each cylinder gaped at 28 top and bottom rings thats what i asked for anyway. I pulled all the rings out in marked them so I knew what cylinders they came out of i was getting ready to to put the Rings on the pistons and just thought why not just check the Rings to make sure in i had anywhere for .15 to a max of .20 and i checked at the top in the middle so it took me a extra 3 hours for me to cut the Rings myself then i called them and told them that he didnt cut the Rings right in all i wanted was my 80 dollars back in he told me he would call me back and came up with the excuse the way he set the Rings was good for 30 pounds of boost he called the manufacture of the Rings and ask them lol wouldnt it have just been easier to say hey i am sorry i just set them up for a no turbo motor over 80 dollars you have lost all of my business for life.

Wonderful service. Was treated with utmost respect, they are experts at knowing how to fix it, and I trust them with my vehicle. Rare to find businesses with high integrity these days, but these guys have it nailed!

These guys are hands down fun to hang with when you got a repair and they most defiantly are more than willing to help out. They keep it in the price range and a great shop. I will surely be back. Thank US Automotive Machine & Proformance.

When it comes to performance on a car, they say Fast, cheap, or reliable: pick two. This place is most certainly not cheap (though not overly expensive in any way), but they definitely deliver on reliable and fast.They did an engine for my 96 Miata and provided exactly what they described. It is now about 8000 miles old and has about 120 autocross runs and two track days on it and is running as well as ever.

Horrible place to go. I got my viper engine rebuilt by these guys only to last couple of weeks and making it worse by breaking my block. They used stock rods with forged pistons. I did my research and asked viper professional and said right away that was a horrible idea. They took almost 10,000 dollars away from me and didn’t help me. This happened last year. I was only 19 years old with rent and bills to pay. I’m a young father and it’s not easy to keep paying for something they did wrong. I was going to sue them but don’t have the money and time to waste.

Jeff and Jay are great and knowledgeable

Had a my cylinder head resurfaced here for $40 and an extra $10 to have it cleaned. Seems like they did what was expected. Gave only four stars because staff didnt seem to friendly over the phone or in person.

Great work and quick turn around

Had my heads done at another shop only to find out they screwed my heads up, was recommend to us automotive machine and couldnt be more happy with the quality work and communication 5 stars and will be coming back in the future

Fantastic. They were very knowledgeable. And helped by keeping money in the bank. Great crew. Would recommend them to anybody and everybody.

When my 1994 Sierra GMC first had a major problem, i took it to these guys after scheduling an appointment and they had it up and running. A few weeks later i had a problem unrelated to my first problem and they had it done within a few hours or less. I think these people are great and i fully trust them with my vehicle. If i ever have a problem with my truck i know i can call this place and get my truck in fast. superb service, friendly, and they know what they are doing.

DISHONEST CHEAPSKATES! I confirmed with these crooks 4 times that the used engine they found to put in my truck would be covered under their warranty (they told me yes, 10k miles or one year, whatever comes first, as long as I take care of it with proper maintenance, etc) but when the engine blew less than 300 miles after getting it back from them they changed their story and LIED saying they never told me it was covered. STAY AWAY!

These guys go above and beyond!! Fixed my 225 slant six with ease, under budget and in a timely manner!! I would recommend to anyone who wants a tune up or machine work!!

These guys are awesome! Ive brought all my race cars here and so has my father to Scott and he has never done us wrong. Awesome people they do great work and they know what theyre talking about! Wouldnt go anywhere else! -isaah

Excellent customer service, made great recommendations to fit into my budget, and they are very knowledgeable! Great experience!

Great place. Fast turnaround and quality work.

Brought in a flywheel to get resurfaced, got the job done perfectly. However customer service is very lacking

We were lied to by Brandon Sparks for 7 months. We are having to sue them for stealing our engine. They blamed the machine shop in there facility for ruining our engine. They never returned the 2000.00 we paid for parts and then they had their receptionist write up a bogus bill not realizing we have cell phone messages and receipts to prove in court that they scammed us. I would not recommend this place as the new owner Chris Sparks, does not care about his business or his customers. This place cannot be trusted and Brandon Sparks is a liar and one of his mechanics agrees with us. See you in court.

Had my car apart and came across a problem where I didnt have the right machinery these guys understood took care of me they were fast friendly and reasonable. I would suggest them to anyone.

Clean area and polite

These people will scam you! They knowingly put a faulty engine in my car and lied about it. Do not trust them. They also said that the engine would be covered by warranty, but as soon as it broke down they denied that they had even offered coverage. Ended up having to get a new car. It is a horrible business.

I had a price quoted here to port some heads, they called me when they were done and I asked what the damage was. They tried to charge me double what they quoted since the machinist did more work than I asked for. Later I found 2 broken exhaust bolts in one of the heads and I had specifically checked them before taking them there. I have exclusively used there machine shop for the last 6 years but never again!

Been going to Tom for years he is a real honest guy

I love these guys I always end up with good news when I take my car in they are so helpful and always try to look out for me! Thank you thank you thank you!

Good work done right

Great people. Easy going.

The best at it all

Tom is top notch, fast and affordable

AKA Metric Motors, ASE service technicians, ethical auto service

People leaving negative comments about doing their homework should do their homework Brandon is not the owner of us performance it is Tom and he owns the Machine Shop what youre mistaking is Tom run into building and allowed them to use the name that is why they are no longer in business and Tom is still in business Tom has built me engines before and is currently building me one now I have no reason to distrust him or Jeff.

Jeff is awesome

Rude people