Ensure a secure and durable connection in your engine assembly with ARP black 12-point header bolts. Designed at 3/8"-16 x .750" length, these bolts provide precise fitment and strength for high-stress applications. Upgrade your fasteners for reliable performance and longevity.

Ensure secure engine assembly with ARP's black hex header bolts designed for precision and durability. Measuring 3/8"-16 x 1.00", these bolts provide a reliable fit using a 5/16" wrench, delivering consistent torque for high-performance applications. Discover why these bolts are essential for maintaining engine integrity.

Ensure reliable engine performance with precision-fit GM LS header bolts designed for secure exhaust manifold attachment. Each bolt measures 0.984" with a 25 mm thread length, providing exact compatibility with GM LS engines. Discover the durability and fit that keep your engine running smoothly.

Ensure a secure, durable connection for your engine headers with this precision-engineered stud kit. Featuring 12 pieces of 3/8 UNC threaded studs at a 1.670" overall length, it provides consistent fitment and strength for reliable performance. Discover the difference exact specifications make in your fabrication needs.