Fitment: Compatible Ford Small & Big Block V8 Engines 260 289 302 351W 351C 352 390 428 429 460 FE Using Headers with up to a ½” Flange.
OE Standard: Meet the Original Equipment (OE) standards, ensuring replacement fit just like the original.
Material: Header Stud Kit Bolts is made of premium quality steel with High Strength, strong and reliable, not easy to break or deform, can be used for a long time. This kit is a reliable replacement for the original hardware that is missing or damaged, or has failed.
Size: Head Width: 14mm;Thread Diameter: 10mm;Total Length: 34.5mm;Length of Thread:25mm ,Anti-Corrosionk ClearZinc Plated. Includes 12 pcs Bolts and 12 pcs Washers.
Easy to Install: This product is simple to use and easy to operate. It's designed for easy installation so you can quickly and easily replace your old mounting kit.