Mystery pedestal shipped with rocker assembly

[62Ranchero200]

Greetings Ford Six Fans,

Recently received my 1.6:1 adjustable rocker assembly from CI. I count six mounting pads for rocker shaft pedestals on the head, and there are six pedestals on the assembly. There's also a seventh pedestal included in the box that's a little different:

https://imageshack.com/i/06mqw1j

What could this be for?

Thanks
Bob the Builder

 

[rbohm]

8) read the notes about rocker arms and that ford used a couple of different pedestals to support the rocker arms as noted here;

http://classicinlines.com/rockeroptions.asp#pedestal

if you look at the pedestals in the first two assemblies you will note that in the second that the extra pedestal you got is used, where as in the first it isnt.

 

[62Ranchero200]

8) read the notes about rocker arms and that ford used a couple of different pedestals to support the rocker arms as noted here;

http://classicinlines.com/rockeroptions.asp#pedestal

if you look at the pedestals in the first two assemblies you will note that in the second that the extra pedestal you got is used, where as in the first it isnt.

Thanks for the link. I can see that the unusual pedestal is included with some of the adjustable rocker assemblies, but there's no mention of what the "extra" metal and the unthreaded hole are used for. The upper surface of this pedestal is somewhat flat, almost as if something was going to be mounted on top of it.

Thanks
Bob

 

[rbohm]

8) you might shoot a pm to azcoupe and see what he says though he may respond to this post.

 

[wsa111]

That pedestal should be used in the front position on the rocker shaft. There is a plate that bolts over the top & is held by #1 pedestal bolt.
That pedestal supplies extra oil to the distributor gear via runoff of oil from the rocker shaft & runs into the lifter boss area where an orifice is drilled in the block over the distributor gear for needed extra oiling.
The distributor gear wear is a weak design problem on all the older ford engines, six or eights.
At least on the V8's you can drill a .030" oiling orifice in the front plug on the left lifter galley.