Built to Win. Built by Simmons.
From street-legal builds to full race engines, Simmons Racing Engines delivers precision-crafted powertrains — cylinder head work, performance rebuilds, and custom setups engineered for the track and beyond.
New season builds open — limited slots available.
Precision engine work
for every level.
Whether you're building a weekend track car or a professional race engine, we bring the same obsessive attention to detail to every job.
Engine Rebuilds
Complete short-block and long-block rebuilds — from mild daily drivers to high-RPM race engines. Every component measured, every clearance verified.
Cylinder Head Work
Porting, polishing, valve jobs, and custom flow work. We optimize every passage to maximize airflow and horsepower potential.
Performance Builds
Custom race engine packages — block prep, rotating assemblies, cam selection, and dyno tuning. Built to your specs and your racing class.
Engine Machining
Boring, honing, deck resurfacing, line honing, and magnetic inspection. Precision machining that ensures longevity under extreme conditions.
Custom Fabrication
Custom oil pans, pickup tubes, adapter plates, and one-off solutions for unique racing applications. If you can dream it, we can build it.
Dyno Testing
Run your build on our dyno for validation and tuning. We fine-tune every engine before it leaves our shop so you can race with confidence.
"Every bolt torqued to spec. Every clearance checked twice. That's not paranoia — that's professionalism."
Not just an engine
builder — a racer.
Simmons Racing Engines started with a simple belief: race engines deserve the same craftsmanship as any precision instrument. Located in Woodruff, South Carolina, we've spent over a decade turning raw blocks into championship-caliber powerplants.
We don't just build engines — we understand what they need to survive on the track. Every decision, from piston selection to cam profile, is guided by real racing experience and a commitment to reliability under extreme conditions.
Whether you're a first-time builder or a seasoned team owner, we treat your engine like it's going in our own car. Because it probably is.
Engines that
speak for themselves
A selection of builds and workshop moments from our facility in Woodruff.
Ready to build
your next engine?
Call us to discuss your project. We'll help you choose the right parts, the right specs, and the right approach for your racing goals.
Let's talk
about your build.
Drop by the shop, give us a call, or send an email. We're always happy to discuss your project — no obligation, no pressure.
Visit Us
305 Aiken Rd
Woodruff, SC 29388-8506
Call Us
(864) 764-4905Email Us
sreperformance6@gmail.comSend Us a Message
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