I just used the Hughes stud kit and hold downs on mine with the groove down. These rockers are pretty much bullet proof and I'm sure they will still be "rocking" long after get my use out of them. I didn't use any locktite on mine just ARP lube on the threads and washers and dry into the heads.
Gus beer

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64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60