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November 2024 by Josh
Heard awesome things about RAD and they lived up to everything and beyond. Donny is great in every category, with going over options and explaining things thoroughly, fair and honest prices, open line of communication the entire time, he’s the best.
His finished product is a work of art, and most importantly all the small details matter the most to him. In my case he helped me with a Mitsubishi 4g63.
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August 2024 by Jeffrey DeMarey
These guys are absolutely amazing. They can work on brass era.Cars all the way up to modern fuel injected race cars.. Absolutely recommended. You can't go wrong by bringing your work to Donnie and his crew.
They even have a full chassis dyno and an engine dyno
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February 2024 by Ronald Benedict
Best motor builder I've ever meet
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April 2023 by Josh Ribeiro
Have been coming to RADS for 4+ years and nothing but quality work. Highly recommend
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January 2022 by Gerardo Torres
I took some heads to there machine shop, and they came out awesome, I recommend this place.
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July 2021 by Jason Teixeira
I have so many documented issues with my GT500 engine these guys should be embarassed. From oil pick up depth not being set correctly to rounded off arp 12 point hardware for side main supports its unreal this place is still open. Literally locked up a $25k shortblock due to oil pump not being set correctly. Then brought a 0 mile rebuild to TKM and a insane number of issues were found. #7 rod cap was backwards...main line was off .003, bearing clearances were too tight and ring gaps were all over the place. You are better off building your engine yourself than giving these guys the work. I wouldnt let these guys build me a weedwhacker engine.
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June 2021 by Robert Cassim
And my work done on a nice Chevy avail good to me one day turnaround
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June 2021 by Frank Perez
Needs a set of heads redone for a project. Was greeted and treated with respect went over clean and quote and all my options. Had the work done quickly. All set and ready for install. Will be going back for future work as well passing info out to friends.
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May 2021 by Gerardo L Torres
I took some heads to there machine shop, and they came out awesome, I recommend this place.
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January 2021 by Mechanical Mike
Brought 2 Cylinder Heads from the notorious 4.6L Northstar to be gone through and checked for any signs of warping. Priced slightly cheaper than ordering remanufactured heads. The guys there are cool, the work is good. Definitely going back with anything else I need worked on, and definitely recommend.
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September 2020 by Steven Moore
Had Donny rebuild my zz4 engine Had nothing but problems Pulled the motor 4 times for him to fix problems The only problem he fixed was the rear main seal from leaking Still have major valve train noise No oil going to heads until a higher rpm and still have major vibrations The motor doesn’t have 10k on it Now it’s just vibrating apart Having compression issues also Would not recommend Rad to anyone unless you like constantly pulling your motor for issues
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March 2020 by Ken bernard
Used frequently for head repairs always fast service and great price
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January 2020 by Lou S
Excellent work! Engine still runs beautiful!
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December 2019 by stephen halluuyyuu77u7
Been using rad for as long as I can remember...I push my stuff way beyond recommended levels and have never had an issue..very knowledgeable.
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November 2019 by Jake C
Great engine shop. Always knowledgeable on whatever project I'm working on. Work always comes back top notch.
