Seems to me that the stock Chevrolet setup is pretty good and works well as long as the valve/rocker geometry is good.

Those look like the adjusters on my Norton Commando motorcycle. I have worked on many of those over the years and the ball ends tend to dig into the valve-stem ends making it impossible to adjust the valves with a feeler gauge. Then one puts on a hardened lash cap.


1951 3800 1-ton
"Earning its keep from the get-go"
In the DITY Gallery
1962 261 (w/cam, Fenton headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.