The ARP Header Bolt & Stud Kit is the perfect solution for Chevrolet LS Gen III/IV engines with a 1/4" wide flange. This kit, with a product code of 434-1201, features ARP Stainless bolts with a 12-point head design for easy and secure installations. The kit includes 12 bolts with a UHL (Under Head Length) of 0.984" and a thread size of M8". The socket size required for these bolts is 10mm 12pt, ensuring a precise fit every time. Additionally, washers are included to provide extra support and stability to your headers.

ARP is a trusted brand known for its high-quality fasteners, and this Header Bolt & Stud Kit is no exception. The company operates multiple facilities in Southern California dedicated to forging, heat-treating, machining, quality control, and packaging/warehousing. With a wide range of products that include thousands of part numbers, ARP has become a go-to for both professional racers and automotive enthusiasts. From OEM replacement parts to specialty hardware used in top racing circuits like Formula 1 and NASCAR, ARP delivers top-notch fasteners that meet the highest standards of performance and durability. Trust ARP for all your automotive fastening needs, including this reliable Header Bolt & Stud Kit.