They are just marks. I saw these marks on another engine before. Should be normal I guess.

 

If I get lash caps, will the valvetrain be safier? I know they are 0.080" thickness so I must get 0.080" longer pushrods thats ok. But is anything else needed? These caps are just bolt on? Or is required any machining? (retainer or ...)

 

I can't believe NONE of the resident experts have chimed in over this!
You need to find out why those marks are happening. You will only be applying a bandaid if you just put the caps on.
As stated.. check the spring pressures on your heads. Also... check your install height on each and every spring to make sure they are w/in spec of the spring. If you don't have the install height/spring pressure info you need to get it.
If you do not feel any divots or impressions then don't worry about the lash caps.

 

The caps are not needed.

 

Around 190lbs close seat pressure and around 450lbs open pressure. I know it is too much for a hydrolic roller setup, but there is nothing for with higher pressure right? In the worst case my Morels will collapse (never heard any tough). That 190lbs will dcrease to around 170lbs after a while. The engine is brand new (runs only 20-30 mins) so its normal that I don't feel any divots or impressions.

 

I think you should take the springs off and have them tested at a machine shop as well as checking the install height w/ a micrometer.
Perhaps it's too much pressure, collapsing the lifters, causing them to get tossed off the cam lobes and smacking the valve tips... dunno man. You should find out what spring pressures are recommended for what cam you are running and use those instead.
Maybe those marks were there before the engine was ever fired up? Funny how no one has an opinion about this.

 

The spring pressure is on the high side but it is OK,
Hyd lifters don't "just collapse"period.

 

well then... do you have any suggestions as to why the valve tips have marks on them?

 

Well,read my other posts on the subject and see.

 

Ah... see that now. However I don't understand how it could be the rockers not contacting the valve tips "perfectly square" when there are markings on some valves continuously all the way across the valve tip. If there's enough friction on those valves to leave marks especiall after the motor has been run w/ this setup for a very short time then it seems like some serious damage can be done if left unresolved.

 

Happens a lot.
The studs and guides are not dead square on some and square on others and with the PR pushing at an angle on the rocker through the guide plate it tends to do close to the same thing.
It's not right but NO big deal as it don't seem to effect anything on the engines I have built and seen it on. It may only be .001 and that's all it takes to make it roll uneven on the stem.
The mark it self is from the to different metals rubbing together or assy lube or no lube on initial firing that's not a big deal either.

 

I know its better to have a high pressure than lower (to avoid valve float). But I really wonder what could be the consequences, if I use these high pressure springs for a daily driven hydrolic setup.
1) collapsed lifters
2) ?

 

As I said before lifters DON'T just collapse. Ya will be OK.

 

okie doke... thanks for the info.