Northwest Motor Machine
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At Northwest Motor Machine we don't just specialize in passenger car, truck (gas and diesel), we also have the capabilities of customizing your engine or manufacturing new parts for stock or high performance. If you are in need of an engine rebuild or custom fabricationwe will provide you with the personalized service you deserve!

All of our engines are rebuilt with new rings and pistons, freeze plugs, lifters, timing components, crankshaft, oil pump, and gaskets. Blocks are cleaned and magnafluxed to ensure unseen cracks do not cause premature failure. Then, to assure proper sealing, block decks and cylinder heads are resurfaced.
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With over 30 years of experience building some of the best engines ever to hit the street and drag strips in and around Idaho Northwest Motor Machine can take you to the next level in performance. The 2nd generation engine builder, Ron's son, came in 3rd in the National Engine Builders of America competition.
Reviews (8)
Mike Hehir
Mike Hehir
Oct 01, 2021
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Ron and Justin are on their A game. Used these guys for years. So pleased I ship stuff from K Falls to them for my needs.
Thomas K.
Thomas K.
Aug 24, 2021
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Awesome crew. Took an old control arm in with some concerns regarding threading in a steel bushing and they took care of the job same day and with no charge. Simply let me know it just needed to be brute forced and no need to worry. Have a nice day. Could have easily charged me even 10 bucks but they didn’t feel the need. I know where I’ll be taking my future business! Thanks guys!
Tyson Edwards
Tyson Edwards
Aug 12, 2021
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Northwest motor machine does get work!! They have done a few projects for me and each one turned out perfect!!
Oscar Saldana
Oscar Saldana
Jul 04, 2021
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Brought a block and head to get degreased and honed. They took longer than they said it would take to be done. Had to call several times to get updates. Got the block back. Finally got a call from them telling me the head was ready. I show up just to have them tell me that it still isn't ready come back after the weekend. They told me they'd call on Monday to let me know it was ready. Five days later I have to call again to make sure the head is done before wasting more time and gas. Justin was very helpful however the guy behind the counter was very unprofessional.
James Mallett Jr
James Mallett Jr
Mar 18, 2021
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I was told this machine shop was one of the best in the valley after giving my motor to them they reassembled my bottom end they bolted my head to the block they also billed me for freeze plugs and when I was filling the motor with coolant I started leaking coolant from one of my freeze plugs and they would not pay for removing the motor to get to the freeze plug they wanted me to get the freeze plug so they could get to it easy and didn’t take much responsibility they also put in my crankcase pressure pipe and coolant pipe that are pressed into the block the coolant pipe was put in wrong every
Shane Palmer
Shane Palmer
Jan 21, 2021
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Was told 2 days, took 4.. was told 1 price on email then upon arrival price was different...Very over priced. Had machined work Priced 70$ higher then a shop 20 min away. Had a bolt that apparently was broke off and would charge 27$ to remove. When all I had to do was put pliers and turn it out. work that was done was decent.
Andrew Tuning
Andrew Tuning
Dec 12, 2020
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Excellent work and craftsmanship. I highly recommend them. They did a great job on the cylinder head for my ATV.
Jeff Shawver
Jeff Shawver
Jun 20, 2020
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I've worked with the guys here for a while. They know what they're doing and always helpful. Quality work and I trust them to do our shops machine work. Thanks for the great service guys!