[i82much]

Originally Posted by Nobuddy

Crower "Cam Saver" is only for flat hydraulics. It is a flat ground in the side of the lifter from the oil band to the face as a controlled leak for extra oil to the cam lobe/lifter face. So if you need extra oiling, it might help. Other ways to do this include cutting a groove in the lifter bore down towards the camshaft. There used to be kits with a guide bushing and cutting tool that you could add the grooves into the lifter bores by hand. You would have to hone afterward. I've never used either method so no opinion if or when they help.

The tiny holes in the face of the flat lifters are only for solids. Crower calls their version Cool Face. Doesn't work on a hydraulic since it would leak down all the internal pressure and fail the automatic lash adjustment.

makes sense, thank you!