Stud mount rocker dimension information

[cr_bobcat]

Any ideas or sources of data for rocker arm dimensions? I've gone and measured an adjustable stock rocker that I had on the shelf. I'm looking to see what I can maybe draw up as an adapter plate to mount stud mounted rockers on a rail. I know what the overall length is that I need, and I know how to figure out where to stick the fulcrum. I don't know height yet nor what that does for spring bind or valve/pushrod length.

I have a spare head and would like to see what I can get mocked up but I don't know where to start from an overall rocker size standpoint. Anybody aware of any kind of database where I can pull stock dimensions from. I would rather not have to buy a dozen different single arms...

 

[DannyG]

Just a thought to consider, the OEM rockers are offset . I'm looking at my very worn original set, and the valves are not inline with the pushrods .
This may help narrow down your search ?
DannyG

 

[cr_bobcat]

Just eyeballing an adjustable and a non-adjustable, they both look to be inline. There is a slght rolling around the oilng hole, but the look straight. I'll measure at some point though to make sure.

I'm really hoping some knows what the lengths are for SBF, 385s, and FEs. From there I'll have to look at other manufacturers to see what I can find. I'm assumin there has to be other engines with the same (or close there to) cylinder bore such that i can match up a rocker length. From there start looking for different ratios.

Maybe it's a wild goose chase, but i thought i would give it a go.

 

[DannyG]

They are cast wide enough to "look" inline, but if you check the shiny wear pattern, you'll see the wear pattern is slightly off to one side.
I'm not sure if most shaft rockers are this way or just ours ?
I'll try to upload a picture if it'll help.
DannyG
edit : They are probably cast wide so as to be used on either side of the valve. One casting for the whole engine, regardless of the valves offset ?