I vehemently disagree with that being lifter noise. Even when I fired up my 3L the first time, I had lifter noise for at least 20-30 seconds, and it was much softer than that. Once the pressure got up there it was gone of course, but it didn't sound like that.
Besides, its a new lower end, the pump is obviously getting enough pressure to the rods and mains because there are no 'deep' tones coming from the lower end. That would leave a complete restriction in the oil supply galleys going to the heads to have no pressure up there. Thats not likely that both heads would be restricted.
warmonger
