Rockers

First - I've never built a Cammer...

Now that we have that out of the way, I have a couple observations/ideas which may (or may not) have some merit.

Unlike any other FE adjuster, this one rides directly on the valve. It is subject to scrub loads across the valve tip - something handled by a roller tip or a radiused bottom on rockers on a "normal" engine.

What does the valve tip contact point/contour of the adjuster look like? These could be subjecting the adjuster screw and/or rocker body to far more flex and side load than they would normally see in any other application. Anything that upsets the "flat to flat" contact of the lock screw to the rocker body tip will really focus loads against the threaded member - a logical fracture point. The factory rockers looked to be a really beefy & heavy/rigid forging.

With bigger cams and stiffer springs, those various thickness lash caps from first design SOHCs might start looking pretty good - in part because they'd allow a roller tip on both ends of the rocker.

Waiting for critics and comments......

Barry Rabotnick
Survivalmotorsports.com