Years ago a Mustang I had would do that.The lifters would blled out the oil in them.Then after I started it they would pump up and be quiet .took about 1 minute or less..
I wanted to mention, I had some gears installed this weekend by K&S, and the gears are super quiet and nice. The service and how well this shop took care of me, is definately worth mentiong. Thanks A+++:awesomework: