If there is a new engine and new lifters, but the oil pressure is at 80 and the lifters won't pump up, what could be the issue?

If there is a new engine and new lifters, but the lifters won't pump up and the oil pressure is at 80, there could be several possible causes. One possible cause could be that the lifters were not installed properly, which can prevent them from pumping up even with sufficient oil pressure. Another possible cause could be that there is a blockage or restriction in the oil passages, preventing oil from reaching the lifters. Additionally, there could be an issue with the oil pump itself, which could be delivering too much pressure but not enough volume. It's also possible that the lifters may be defective or damaged, even though they are new. It's best to consult with a qualified mechanic to diagnose the issue and determine the appropriate solution.

new engine and new lifters