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sales@rkautowerks.com
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Built by RK.
We don’t assemble engines; we build them with purpose. Whether you’re chasing horsepower records, long term reliability, or both, our in-house engine program is built around execution. Every RK motor is hand-assembled using forged internals, race tested hardware, and strict quality control. It’s the same spec we run in our own cars.
Our S58 powered M3 ran a 7.7. That wasn’t a fluke. Our engines don’t just make power: they hold it under pressure. They’re tested on track, proven in the real world, and built to be driven.
Start Your Build
Fill out the form to express interest and we’ll follow up with details based on your platform, goals, and timeline.
Explore Our
Engine Builds
Forged engine builds for B58 and S58
Stock and forged options for S63TU and S63TU4
Long blocks tailored to your power and reliability goals
CP Carrillo rods, ARP hardware, ACL or RK-spec bearings
Upgrade paths and install support available if needed
I had a 2012 BMW X5 M that I blew the motor in. You need to use a lot of discernment when choosing a company you can trust giving not only $11k to for a motor but also that you will get a motor that was rebuilt with excellent workmanship and quality parts. After looking at quite a few options I chose RK Autowerks and I am so happy I did. From the very beginning when I had a ton of questions, to ordering, to when my indy shop received it and installed it the crew at RK goes above and beyond to make sure your taken care of. Hell, even long after the swap was done they are still checking in to make sure everything is running good and I'm satisfied. I can't recommend these guys enough. My X5 M has never ran better. Thanks M Toth Ennis, Mt
RK Autowerks has taken care of me time and time again. Thank you for your excellent service! Raza is so nice and advised me on how much power I should put down. He is always aware of me as a customer. He is a true Man!
Milaad and Raza are a pleasure to deal with, incredibly responsive and have a great support system in place for their top notch products. Products are usually in stock and available within a couple of days. Couldn’t ask for better support from an aftermarket vendor
FAQ’s
What types of vehicles do you specialize in?
We primarily specialize in high-performance upgrades for BMW and McLarens, including M-series and turbocharged platforms like the B58, S58, and S63TU engines.
Can I customize an engine build to match my specific goals?
Yes, all our engine packages are customizable. Whether you’re building for street use, track days, or competitive motorsports, we tailor each solution to your performance targets.
What is the typical turnaround time for engine builds?
Turnaround time depends on the build complexity and parts availability. Typically, full engine builds take 4–8 weeks. We’ll provide a detailed timeline when your order is placed.
Are your components tested for reliability?
Yes. All RK Autowerks parts undergo rigorous testing under real-world and performance conditions to ensure durability, precision, and long-term reliability.
Can I install RK Autowerks products myself?
While some parts can be installed by experienced enthusiasts, we recommend professional installation—especially for engine internals and high-performance components.
Do you provide tuning services with your upgrades?
No, we do not offer tuning services.
How do I know which products fit my car?
Each product page lists compatible vehicle models and engine codes. If you’re unsure, contact our team for personalized guidance before purchasing.
How can I contact support or request a consultation?
You can reach us at esales@rkautowerks.com or call 253-271-9386. We’re happy to help with technical questions, custom builds, or order-related inquiries.
You can also submit a build request, and we’ll contact you with next steps.
