I have a 383/432 stroker with Hughes retrofit hydraulic roller lifters (morel). I have had some lifter tick from day one that seems to be getting more noticeable. My push rods have holes to allow from push rod oiling, which I do not need, and I’m now wondering if i could be bleeding off some pressure at the lifters causing the tick. I have 3/4 of a turn preload and am using a high volume oils pump. Pressure is 45-50 hot at cruise and I have used different viscosities of oil with no noticeable improvement. Currently 10w 30 mobile 1 synthetic.
Thoughts?