ARP

In an engine where tolerances are measured in ten-thousandths of an inch, there is no room for 'good enough.' ARP Performance Products represents the pinnacle of fastener technology. From cylinder head studs to rod bolts, every ARP component is manufactured in-house to ISO 9001 and AS9100 standards, ensuring tensile strengths that far exceed aerospace requirements. When you choose ARP, you aren't just buying a bolt—you’re buying the insurance that your engine will stay together under the most extreme combustion pressures and RPMs.

Don’t let a factory bolt be the weak link in your build. Whether you’re adding a turbo, increasing compression, or simply performing a high-quality rebuild, ARP fasteners provide the clamping force necessary to prevent head gasket failure and bearing spun-out. Trusted by virtually every professional engine builder in Formula 1, IndyCar, and NHRA, ARP gives you the confidence to push your machine to the limit. Strength. Reliability. Performance.  

The world leader in fastener technology. From daily drivers to 10,000-horsepower dragsters, ARP Performance Products provides the essential hardware that holds the racing world together. Made in the USA from proprietary alloys, ARP is the first and last word in high-performance bolts, studs, and nuts.Build with the best. Build with ARP.