AFR Rocker Arm Stud - 7/16-14 in Base Thread - 7/16-20 in Top Thread - Big Block Chevy (Set of 8) Lecarra Steering Wheels Usually these are made of

Usually these are made of pipe and threaded in the holes

540" OD and

Hose Cutter Blades

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AFR Rocker Arm Stud - 7/16-14 in Base Thread - 7/16-20 in Top Thread - Big Block Chevy (Set of 8) Lecarra Steering Wheels Usually these are made ofProduct Description: Rocker Arm Stud 7 16 14 in Base Thread 7 16 20 in Top Thread 2. 010 in Effective Stud Length Steel Black Oxide Big Block Chevy Set of 8 For over thirty years Airflow Research has been defining technological leadership in cylinder head manufacturing and flow dynamics. This complete commitment to performance has enabled Airflow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street