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Check out our extensive inventory of Holley Terminator EFI Kits

Weld-In Threaded Bosses

9/16" O.D., 3/8"-24 Right Hand Thread
9/16" O.D., 3/8"-24 Right Hand Thread
5/8" O.D., 3/8"-24 Right Hand Thread
5/8" O.D., 3/8"-24 Right Hand Thread

5/8" O.D., 7/16"-20 Right Hand Thread
5/8" O.D., 7/16"-20 Right Hand Thread
3/4" O.D., 1/2"-20 Right Hand Thread
3/4" O.D., 1/2"-20 Right Hand Thread

7/8" O.D., 5/8"-18 Right Hand Thread
7/8" O.D., 5/8"-18 Right Hand Thread
1" O.D., 3/4"-16 Right Hand Thread
1" O.D., 3/4"-16 Right Hand Thread