help rocker ajustment

4spdragtop said

When we were adjusting the valves on Dads 273, I called Comp Cams to get the valve lash, they actually told me to set them a little TIGHT cold. Apparently they "loosen" up when hot....
Cant remember what I set them at last spring, I believe .020 for exhaust and intake.
Nice job on the rockers by the way.

Click to expand...

Whoever told you that, either thought you had aluminum heads, or they didn't know what the FLIP they were talkin about. When an iron headed motor heats up, everything expands. That means you need to adjust cold a little loose because when the valve tip and rocker expand, the will close the gap a little. You will likely not notice a difference, but It would be nice if the guys at Comp knew what to tell you.