PAC Racing Springs

09/03/2026

⚡ Lightweight design. Heavyweight durability. 💪

08/19/2026

⚠️ WARNING: Not your average valve spring setup.

500 lbs of seat force staring back from the gauge.

That's the kind of force needed when you're building engines that live at the edge of what's possible.

Who else is running serious spring force? 👇

08/17/2026

08/17/2026

08/14/2026

PAC Racing Springs' Hidden Gem: Advanced Metallurgical Testing

Many people know PAC Racing Springs for producing world-class valve springs, but fewer realize that PAC is also home to a state-of-the-art metallurgy laboratory.

Our advanced testing capabilities include:

X-Ray Diffraction (XRD)
Scanning Electron Microscopy (SEM)
Microhardness Testing
Tensile Testing
Impact Testing
Nital Etching for Grain Structure Analysis
And much more

These tools are critical to understanding material behavior and ensuring our valve springs perform reliably in the extreme conditions of motorsports competition.

Beyond supporting our own engineering and manufacturing efforts, PAC also provides third-party testing and inspection services. Whether you need material characterization, failure analysis, microstructural evaluation, or mechanical property testing, our experienced team can help.

If you have components that require testing or inspection, don't wait. Contact our team today at [email protected] to learn more about our metallurgical laboratory services.

08/12/2026

🔥 Attention IMCA Racers! 🔥

The PAC-1290X-16 is here!

✅ Developed specifically for IMCA applications
✅ Manufactured from superclean PACaloy® wire
✅ Precision heat treated in-house
✅ Multi shot peened for maximum durability
✅ Exceptional load retention and fatigue resistance

Built to last. Built to win.

Available now and in stock at PAC Racing. 🏁

08/04/2026

Built strong, battle proven. Parts, cars, and drivers alike. 🤝 Nate Chen

07/30/2026

Zetec power, PAC performance! 🔥 Whether you're running a hot street car or a Midget race engine, the PAC-1960 drop-in beehive valve spring is built to elevate your valvetrain performance. Proven stability, reliable control, and an easy drop-in installation make it a winning choice for any Zetec build.
https://www.racingsprings.com/product/valve-springs/street-performance/hot-rod/pac-racing-1900-series-round-wire-beehive-valve-spring-set/

07/15/2026

A world class valve spring deserves a world class retainer. PAC retainers are designed for exact spring fitment and offered in a variety of materials to optimize both strength and weight. The result is a valvetrain that supports maximum RPM, lift, and horsepower while maintaining reliability.

07/03/2026

Happy 4th of July from our racing family to yours! 🇺🇸🏁

It's time to trade the shop for the grill and spend a few days with the people who matter most. We'll be closed today, July 3rd, for the holiday weekend and will be back at it Monday morning.

Have a safe holiday, enjoy the racing, and we'll see you next week!