Rocker shaft indentification

[Gordobe]

I am in need of replacing my rocker shaft and came upon this one and am wondering if anyone can identify the build or engine dates, it has a 8mm adjuster ball. My rocker shaft only has one oil hole and a 10mm adjuster ball.

 

[cruiserbrett]

As an aside, I think the entire rocker assembly(shaft, arms and pedestals), pushrods, and maybe even valve cover need to match...
Not sure if you can swap just the shaft if not of the same vintage. For some reason I think the diameter is different.

It’s been a while but the change came in late 79 I think...

73 ish 1.5F to ?/‘79
?/‘79 to end of 3FE?

 

[Gordobe]

Yes that is what I have discovered from inquiries else where on the subject.

I believe all I need to do is find the right push rods that match the 8mm adjusting screws.

Thanks Brett