Yes it's a hidraulic lifters thez are news , I change them because the hold are extremely Noisy , at the fist I made then a given amount of preload (¼ turn) and when the engine drive theiz come back solide lifter
With  0.001” the engine drive good but when it 's hot it's not good drive and hydrolique lifter are come back solide lifter
So what if I have a big oïl presure I think they can't work ???

Not sure what you’re asking in regards to the oil pressure.  If you have no oil pressure, then the lifters will be collapsed and extremely noisy.  If you have set the valves so that they are at 0.001” lash when closed, then the valves should be ‘almost’ quiet assuming you have minimal oil pressure.  A mechanical oil pressure gauge will help to verify what the engine has in regards to actual oil pressure.  If you have hydraulic lifters, then a given amount of preload (¼ turn) will keep the top end quiet.
  
At this point make sure that you have hydraulic lifters and not a solid lifter set.  If necessary, take the clip out of the top of one and disassemble to make sure the lifter has a plunger assembly within it.  If so, then it’s hydraulic.

Lorena, Texas (South of Waco)

Ok thank , the lifters are news , I adjust each cyl at tdc fireing to .001 but when the engine is hot all the valves are open ? there is probeme with oïl presure ?

motors manual for 1956 states with new hyd lifters tdc take up sack then turn 2 turns. but after engine has ran this  will cause the engine to run poorley untill it runs for 5 to 10min. i would in your situation adjust each cyl at tdc fireing to .001 after you have re started if it is noisey turn each adjuster i/4 turn.. another way is to get each cyl at tdc fireing,pry each rocker after apox 10 seconds if lifter does not colaps (show some clearance) lifters wher not adjusted corectley. as yours are new they should colaps easley with steadey presure.  what did the botem of the old lifters look like if they wher concave  you  have came problems.   these engines wher realey a great tough power plant. truck versions had solid lifters and gear driven cam, yours should have a chain. hope this helps,these old manuals are a great tool, also good inst. for auto trans set up linkage wise. 

If it is holding the valves open when the engine gets hot, you need to back the adjustment off a small amount.  If you cannot adjust them as mentioned above, set the idle speed as low as you can get it to idle after the engine is hot, and remove one valve cover with the engine idling, back each adjuster off until the rocker arm clatters on the tip of the valve, and then tighten it back until no noise, then go a half turn further and lock the adjuster tight.  Do this for every rocker arm, and the noise will go away, the engine will idle smooth and run well when hot.  If the engine will not respond with this type of adjustment procedure, you have solid lifters, and they will ruin the camshaft if it is made for hydraulic lifters.  You will need a new set of the correct hydraulic lifters.  Yes, you will get a little oil spillage from the engine running with a valve cover off, but once you have the lifters adjusted this way, they should last the life of the engine.  Top off the oil, clean up the mess, and drive it.   Joe-JDC

JDC

you need to tighten about 3/4 turn after contact on compression stroke at tdc.

Thank you RB , yes I put on some news hydraulics lifters . I don't understand how they work because they are already solid end when the engine is hot the valve are open and the engine don't work good
I don't remenber where I see that : there would be 0.02 at the valve , I do that and now the engine drive very good very strange what do you think of ?

Your question is a bit unclear..Are you replacing your hydraulics with solid lifters  or new hydraulics?  If hydraulic you want the lifter plunger compressed about 1/3 to 1/2 of it's travel with the valve closed and the cam on it's base circle. There would be 0 lash at the valve.

I'm going to change the lifters on my Lincoln I would like to know what is the good setting on the valves ?