Re: What Hydraulic Roller Lifters to Run in A Dart Block?
 

We run hydraulic Cranes in our blown 565CIs Dart blocks with a little more lift than your set up , 180lbs of spring pressure and she quickly twists to 6400rpms still pulling with know valve float and zero issuses.
We built our Topgun motor's to the same specs and we experienced zero valve train issues in two full seasons of running.
Good Luck!