ARP SB Chevy hex .875 UHL header bolt kit

These ARP header bolt kits are a solid choice when you're installing or replacing headers on your Small Block Chevy engine. The underhead length on these particular bolts is .875 inches, which is a specific measurement that matters for getting the right fit with many common header designs. ARP is well-known for making strong, reliable hardware, and these bolts are no exception. They're made to handle the heat and vibration that headers deal with, ensuring your headers stay securely in place.

Using a quality bolt kit like this one from ARP means you're not cutting corners on a critical connection point. The hex head design makes them easy to get a wrench on, even in tight engine bays, and they're built to resist stripping. This kit includes 12 bolts, which is typically enough for most common header applications on Small Block Chevy engines. It's always a good idea to double-check your specific header requirements, but this kit is a popular and well-made option for the job.