Lash Caps....Seven Came Off

Lash caps. They are only good for three situations.
1. As mentioned, on very small valve stems, and that limit is generally 7mm. Anything larger is going to have enough contact area if the geometry is correct.

2. Again, as mentioned, for Titanium valves that do not have hardened tips. If a valve with hard tips is being mushroomed, regardless of material, it is being beaten to death by an unstable valvetrain.

3. To correct geometry. BUT, not with a roller rocker. This only applies to running high lift cams with a non roller type rocker. That is why Mopar recommended them for Hemi engines. The small valve stem combined with the increased scrub of the rocker from high lift, and the need for a lower pivot location in relation to the valve tip, is what necessitated the lash caps. Outside of that, there is absolutely no need for them, and they are detrimental to proper geometry on a Mopar with roller rockers. Period. When you can run .750" lift and have the rocker sweep .050" or less, the lash caps are a bad idea.

I'm not here to bash anyone, but I do have some professional inside knowledge that would tell me that if lash caps were used on an LA rocker setup, it was a bad move. Most likely they were installed to increase clearance between the rocker and valve spring/retainer, or to center the sweep pattern and keep the roller from running of of the valve tip. In either case it's a bad move, and is a misunderstanding of proper geometry.