Custom rocker arms for an F Head - Can it be done?

[Lachlan]

You'll probably all think I'm crazy, but does anyone know if you can get custom, heavy duty rocker arms made up for an engine? I've heard of people putting L Head cams in an F Head, but it snaps rocker arms. So I figure just make 'em tougher!

Or, alternatively, is it feasible to look for a high ratio rocker assembly?

NB: The word "feasible" is used relative to the actual value of the F Head, which is probably 90% sentimental.

[murray]

yuo can do what ever you want
LEZ and my self fabricatede a rockerarm and piviot block for a lister deisel after one of our apprentices lost them

[Lachlan]

Are they hard to make? I'm studying engineering at the moment and have limited access to a machine shop. And what should they be made out of?

[murray]

the one i made was from 2mm coldrolled steel was fabbed up to shape
the piviot block wa filed to shape

[murray]

no explanation just fix it son
here is a hacksaw and file and a 25 mm square bar

[Lachlan]

That sounds like a pretty funny story to tell future apprentices! =D
Would you just fab them by CNC? Ugh, means I have to draw drafts... Yuck!

[murray]

do they run on piviots or a rocker shaft?
if the are a cast item yuo would need to cast or forge them i would ot just machine the out of a billt as its all to do with granular flow and stress rissers