Torque # For Iron Rocker Lock Nuts?

For an ARP 3/8 adjuster, 30 is probably about right. I would think ARP or Crane would be good. Manton is also another.

If these are the stock 273 iron rockers, you should make sure the area under the lock nut has been machined or dressed with a file until it is completely flat. If it is left as cast, the lock nuts will work loose........and break the adjusters.