Automotive Racing Products (ARP) Rocker Arm Stud Set 134-7104; High Performance Screw-In w/ Hex Shoulder 3/8 in. -24 2.605 in. Black Oxide 8740 Chromoly for Chevy, Ford 262-400, 221-351W

Fits most small block Ford with screw in studs ARP's 134-7104 High Performance rocker arm studs are concentric within .005 thread pitch to thread pitch so they run in straight and true. And the lengths are exact so they provide positive seating every time and an extra large radius on the base gives them much better resistance to flexing. All of ARP's 134-7104 rocker studs are made from 8740 chrome moly steel alloy and heat treated to 180,000 psi. The High Performance series is excellent for bracket racing, limited rules circle track racing, and high performance street use while the Pro Series studs are excellent for standing up to the harsh demands of competition. 3/8-24 Upper thread, 7/16-14 lower thread Set of 16