Originally Posted By Cab_Burge
Why do you not like lash caps?
I use them to prevent the rocker arm tips from flattening out the valve stem tops out with high spring pressures and high RPM camshafts with solid lifters shruggy
As far as perfect rocker arm contact pattern to the valve stems back when Mopar had the drag race seminars prior to going bankrupt in 1980 they recommended the rocker arm contact pattern on the valve stem should start on the inner third of the valve stem and be in the middle of the valve stem at mid lift and on the outer third of the stem at max lift regardless of which Mopar V8 motor with single shaft rocker arms systems on them.
I shoot for right at .030 width on the valve stem to rocker arm roller tips up scope Not zero width tsk
That was before the Magnum SB motors came out and before anyone was making and selling the pair shaft rocker arm systems used today on the better high RPM valve train motors made today work



I've run 340 on the seat with 5/16 stem valves and never flattened a valve tip. Unless you are buying valves that you cut to length. Then you have to use a lash cap.

A lash cap is either a band aid or an evil requirement. Just something else to fall off in the engine when [censored] goes sideways.

And you can never make me believe that adding stem length to correct geometry is he right way to do it. Unless the valve is too short to begin with. Then you buy the correct length valve.

Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston